Port Status and Configuration |
Viewing port status and configuring port parameters
Connecting transceivers to fixed-configuration devices
If the switch either fails to show a link between an installed transceiver and another device or demonstrates errors or other unexpected behavior on the link, check the port configuration on both devices for a speed and/or duplex (mode) mismatch.
To check the mode setting for a port on the switch, use either the Port Status screen in the menu interface or
show interfaces briefin the CLI (see Viewing port status and configuration (CLI)).To display information about the transceivers installed on a switch, enter the
show tech receiverscommand in the CLI (The show tech transceivers command).
Viewing port configuration (Menu)
The menu interface displays the configuration for ports and (if configured) any trunk groups.
From the Main Menu, select:
1. Status and Counters
4. Port Status
A switch port status screen
==========================- CONSOLE - MANAGER MODE -==========================
Status and Counters - Port Status
Intrusion MDI Flow Bcast
Port Type Alert Enabled Status Mode Mode Ctrl Limit
----- --------- --------- ------- ------ ---------- ----- ----- ------
1 100/1000T No Yes Down 100FDx Auto off 0
2 100/1000T No Yes Down 1000FDx Auto off 0
3 100/1000T No Yes Down 1000FDx Auto off 0
4 100/1000T No Yes Down 1000FDx Auto off 0
5 100/1000T No Yes Down 1000FDx Auto off 0
6 100/1000T No Yes Down 1000FDx Auto off 0
7 100/1000T No Yes Down 1000FDx Auto off 0
8 100/1000T No Yes Down 1000FDx Auto off 0
9 100/1000T No Yes Down 1000FDx Auto off 0
10 100/1000T No Yes Down 1000FDx Auto off 0
11 100/1000T No Yes Down 1000FDx Auto off 0
Actions-> Back Intrusion log Help
Return to previous screen.
Use up/down arrow keys to scroll to other entries, left/right arrow keys to
change action selection, and <Enter> to execute action.
| Port Type | The port Type field represents the IEEE or other industry protocol in operation on that port. For example, 1000Base-SX is a gigabit protocol for gigabit operation over fiber optic cable. | ||||||
| Status of Ports | A port can be enabled or disabled:
The status of a port can be up or down (Read-only): Up: The port senses a link beat. Down: The port is not enabled, has no cables connected, or is experiencing a network error. For troubleshooting information, see the installation and getting started guide for your switch. | ||||||
| Flow Control | With the port mode set to Auto (the default) and flow control on (enabled), the switch negotiates flow control on the indicated port. If the port mode is not set to Auto, or if flow control is off (disabled) on the port, then flow control is not used. Flow control must be enabled on both ends of a link.
| ||||||
| Broadcast Limit | The broadcast limit specifies the percentage of the theoretical maximum network bandwidth that can be used for broadcast and multicast traffic. Any broadcast or multicast traffic exceeding that limit will be dropped. Zero (0) means the feature is disabled. The
| ||||||
| Modes | The mode is the port’s speed and duplex (date transfer operation) setting. Supported Modes shows possible modes available, depending on the port type (copper or fiber) and port speed. |
Supported Modes
| Mode | Speed and Duplex Settings |
|---|---|
| Auto-MDIX | Senses speed and negotiates
with the port at the other end of the link for port operation (MDI-X
or MDI). To see what the switch negotiates for the Auto setting, use
the CLI This features applies only to copper port switches using twisted-pair copper Ethernet cables. |
| MDI | Sets the port to connect with a PC using a crossover cable (Manual mode— applies only to copper port switches using twisted-pair copper Ethernet cables). |
| MDIX | Sets the port to connect with a PC using a straight-through cable (Manual mode—applies only to copper port switches using twisted-pair copper Ethernet cables). |
| Auto-10 | Allows the port to negotiate between half-duplex (HDx) and full-duplex (FDx) while keeping speed at 10Mbps. Also negotiates flow control (enabled or disabled). Hewlett Packard Enterprise recommends Auto-10 for links between 10/100 auto-sensing ports connected with Cat 3 cabling. (Cat 5 cabling is required for 100 Mbps links.) |
| Auto-100 | Uses 100 Mbps and negotiates with the port at the other end of the link for other port operation features. |
| Auto-10-100 | Allows the port to establish a link with the port at the other end at either 10 Mbps or 100 Mbps, using the highest mutual speed and duplex mode available. Only these speeds are allowed with this setting. |
| Auto-1000 | Uses 1000 Mbps and negotiates with the port at the other end of the link for other port operation features. |
| 10HDx | Uses 10 Mbps, Half-Duplex |
| 100HDx | Uses 100 Mbps, Half-Duplex |
| 10FDX | Uses 10 Mbps, Full-Duplex |
| 100FDx | Uses 100 Mbps, Full-Duplex |
| 1000FDx | Uses 1000 Mbps, Full-Duplex |
| 10 GbE FDx | Uses 10 Gigabits/sec Full-Duplex |
Protocols and modes supported for copper ports and Protocols and modes supported for fiber optic ports display the protocols and modes supported for copper ports and fiber optic ports, respectively.
Protocols and modes supported for copper ports
| 10/100 Mbps | Gigabit | 10 Gigabit | |||
|---|---|---|---|---|---|
| 10/100 TX | 10/100/1000-T | 10GBASE-CX4 | |||
| Modes | Settings | Modes | Settings | Modes | Settings |
Auto 10HDx 100HDx 10FDx 100FDx |
100FDx 10HDx 100HDx 10FDx 100FDX |
Auto Auto-10 Auto-100 Auto-10-100 Auto-1000 10HDx 100HDX |
1000FDx 10HDx 100FDx 100FDx 1000FDx 10HDx 100HDx |
Auto |
10 Gigabit FDx |
Protocols and modes supported for fiber optic ports
| 100 Mbps | Gigabit | 10 Gigabit | |
|---|---|---|---|
| Protocols | 100BASE-FX 100BASE-BX10 |
1000BASE-SX 1000BASE-LX 1000BASE-BX10 1000BASE-LH |
10GBASE-SR 10GBASE-LR 10GBASE-LRM |
| Modes | 100HDx 100FDx |
Auto 1000FDx |
Auto |
Configuring ports (Menu)
The menu interface uses the same screen for configuring both individual ports and port trunk groups. For information on port trunk groups, see the chapter on "Port Trunking".
From the Main Menu, select:
2. Switch Configuration…
2. Port/Trunk Settings
Port/trunk settings with a trunk group configured
=====================- TELNET - MANAGER MODE -===================== Switch Configuration - Port/Trunk Settings Port Type Enabled Mode Flow Ctrl Group Type ---- -------- + -------- ----------- --------- ----- ----- A1 1000T | Yes Auto-10-100 Disable A2 1000T | Yes Auto-10-100 Disable A3 1000T | Yes Auto Disable A3 1000T | Yes Auto Disable A4 1000T | Yes Auto Disable A5 1000T | Yes Auto Disable A6 1000T | Yes Auto Disable A7 1000T | Yes Auto Disable Trk1 Trunk A8 1000T | Yes Auto Disable Trk2 Trunk Actions-> Cancel Edit Save Help Cancel changes and return to previous screen. Use arrow keys to change action selection and <Enter> to execute action.Press
[E](for Edit).The cursor moves to the
EnabledFor further information on configuration options for these features, see the online help provided with this screen.
When you have finished making changes to the above parameters, press
[Enter],then press[S](forSave).
Viewing port status and configuration (CLI)
Use the following commands to display port status and configuration data.
Syntax:
show interfaces[ brief | config | <port-list> ]
briefLists the current operating status for all ports on the switch.
configLists a subset of configuration data for all ports on the switch; that is, for each port, the display shows whether the port is enabled, the operating mode, and whether it is configured for flow control.
<port-list>Shows a summary of network traffic handled by the specified ports.
The show interfaces brief command listing
HP Switch(config)# show interfaces brief
Status and Counters - Port Status
| Intrusion MDI Flow Bcast
Port Type | Alert Enabled Status Mode Mode Ctrl Limit
----- --------- + --------- ------- ------ ---------- ----- ----- ------
B1 100/1000T | No Yes Down Auto-10-100 Auto off 0
B2 100/1000T | No Yes Down 1000FDx Auto off 0
B3 100/1000T | No Yes Down 1000FDx Auto off 0
B4 100/1000T | No Yes Down 1000FDx Auto off 0
B5 100/1000T | No Yes Down 1000FDx Auto off 0
B6 100/1000T | No Yes Down 1000FDx Auto off 0The show interfaces config command listing
HP Switch(config)# show interfaces config Port Settings Port Type | Enabled Mode Flow Ctrl MDI ----- --------- + ------- ------------ --------- ---- B1 100/1000T | Yes Auto-10-100 Disable Auto B2 100/1000T | Yes Auto Disable Auto B3 100/1000T | Yes Auto Disable Auto B4 100/1000T | Yes Auto Disable Auto B5 100/1000T | Yes Auto Disable Auto B6 100/1000T | Yes Auto Disable Auto
Dynamically updating the show interfaces command (CLI/Menu)
Syntax:
show interfaces displayUses the
displayoption to initiate the dynamic update of theshow interfacescommand, with the output being the same as theshow interfacescommand.
![[NOTE: ]](images/note.gif) | NOTE: Select Back to exit the display. |
Example:
HP Switch# show interfaces display
When using the display option in the CLI, the information stays on the screen and is updated every 3 seconds, as occurs with the display using the menu feature. The update is terminated with Cntl-C.
You can use the arrow keys to scroll through the screen when the output does not fit in one screen.
Customizing the show interfaces command (CLI)
You can create show commands
displaying the information that you want to see in any order you want
by using the custom option.
Syntax:
Select the information that you want to display. Supported columns are shown in Supported columns, what they display, and examples:.
Supported columns, what they display, and examples:
Parameter column |
Displays |
Examples |
|---|---|---|
port |
Port identifier |
A2 |
type |
Port type |
100/1000T |
status |
Port status |
up or down |
speed |
Connection speed and duplex |
1000FDX |
mode |
Configured mode |
auto, auto-100, 100FDX |
mdi |
MDI mode |
auto, MDIX |
flow |
Flow control |
on or off |
name |
Friendly port name |
|
vlanid |
The vlan id this port belongs to, or "tagged" if it belongs to more than one vlan |
4 tagged |
enabled |
port is or is not enabled |
yes or no intrusion |
intrusion |
Intrusion alert status |
no |
bcast |
Broadcast limit |
0 |
The custom show interfaces command
HP Switch(config)# show int custom 1-4 port name:4 type vlan intrusion speed enabled mdi
Status and Counters - Custom Port Status
Intrusion
Port Name Type VLAN Alert Speed Enabled MDI-mode
---- ---------- ---------- ----- --------- ------- ------- --------
1 Acco 100/1000T 1 No 1000FDx Yes Auto
2 Huma 100/1000T 1 No 1000FDx Yes Auto
3 Deve 100/1000T 1 No 1000FDx Yes Auto
4 Lab1 100/1000T 1 No 1000FDx Yes AutoYou can specify the column width by entering a colon after the column name, then indicating the number of characters to display. In The custom show interfaces command, the Name column displays only the first four characters of the name. All remaining characters are truncated.
| NOTE: Each field has a fixed minimum width to be displayed. If you specify a field width smaller than the minimum width, the information is displayed at the minimum width. For example, if the minimum width for the Name field is 4 characters and you specify Name:2, the Name field displays 4 characters. |
You can enter parameters in any order. There is a limit of 80 characters per line; if you exceed this limit an error displays.
For information on error messages associated with this command and for notes about pattern matching with this command, see Error messages associated with the show interfaces command.
Error messages associated with the show interfaces command
Error |
Error message |
|---|---|
Requesting too many fields (total characters exceeds 80) |
Total length of selected data exceeds one line |
Field name is misspelled |
Invalid
input: < |
Mistake in specifying the port list |
Module
not present for port or invalid port: < |
The port list is not specified |
Incomplete input: custom |
Note on using pattern matching with the show interfaces
custom command
If you have included a pattern matching command
to search for a field in the output of the show int custom command,
and the show int custom command produces an error,
the error message may not be visible and the output is empty. For
example, if you enter a command that produces an error (such as vlan
is misspelled) with the pattern matching include option,
the output may be empty:
It is advisable to try the show int
custom command first to ensure there is output, and then
enter the command again with the pattern matching option.
Note that in the above command, you can substitute int for interface;
that is: show int custom.
Viewing port utilization statistics (CLI)
Use the show interface port-utilization command to view a real-time rate display for all ports
on the switch. A show interface port-utilization command
listing shows a sample output from this command.
A show interface port-utilization command
listing
HP Switch(config)# show interfaces port-utilization
Status and Counters - Port Utilization
Rx Tx
Port Mode | -------------------------- | --------------------------
| Kbits/sec Pkts/sec Util | Kbits/sec Pkts/sec Util
----- -------- + ---------- --------- ----- + ---------- --------- -----
B1 1000FDx | 0 0 0 | 0 0 0
B2 1000FDx | 0 0 0 | 0 0 0
B3 1000FDx | 0 0 0 | 0 0 0
B4 1000FDx | 0 0 0 | 0 0 0
B5 1000FDx | 0 0 0 | 0 0 0
B6 1000FDx | 0 0 0 | 0 0 0
B7 100FDx | 624 86 00.62 | 496 0 00.49
Operating notes for viewing port utilization statistics
For each port on the switch, the command provides a real-time display of the rate at which data is received (Rx) and transmitted (Tx) in terms of kilobits per second (KBits/s), number of packets per second (Pkts/s), and utilization (Util) expressed as a percentage of the total bandwidth available.
The
show interfaces <command can be used to display the current link status and the port rate average over a 5 minute period. Port rates are shown in bits per second (bps) for ports up to 1 Gigabit; for 10 Gigabit ports, port rates are shown in kilobits per second (Kbps).port-list>
Viewing transceiver status (CLI)
The show interfaces transceivers command
allows you to:
Remotely identify transceiver type and revision number without having to physically remove an installed transceiver from its slot.
Display real-timestatus information about all installed transceivers, including non-operational transceivers.
The show tech transceivers command shows
sample output from the show tech transceivers command.
| NOTE: Part # column in The show tech transceivers command enables you to determine the manufacturer for a specified transceiver and revision number. |
The show tech transceivers command
HP Switch# show tech transceivers Transceiver Technical Information: Port # | Type | Prod # | Serial # | Part # -------+-----------+--------+------------------+---------- 21 | 1000SX | J4858B | CN605MP23K | 22 | 1000LX | J4859C | H11E7X | 2157-2345 23 | ?? | ?? | non operational | 25 | 10GbE-CX4 | J8440A | US509RU079 | 26 | 10GbE-CX4 | J8440A | US540RU002 | 27 | 10GbE-LR | J8437B | PPA02-2904:0017 | 2157-2345 28 | 10GbE-SR | J8436B | 01591602 | 2158-1000 29 | 10GbE-ER | J8438A | PPA03-2905:0001 | The following transceivers may not function correctly: Port # Message -------- ------------------------ Port 23 Self test failure.
Allow unsupported transceivers
This feature enables and disables the use of non-HPE Aruba transceivers on HPE Aruba switches.
Description
The Allow Unsupported Transceiver feature allows the user to try a transceiver part (including DAC cables) without the switch attempting to authenticate it as a genuine HPE Aruba part. There is no guarantee that all third-party transceivers will work: typically the ones that work are industry-standard types as identified by the MSA standards body. Those parts that do not comply will most likely still not be enabled.
HPE fully backs only HPE Aruba supported transceivers (listed in the switch QuickSpecs under Accessories); support efforts will be honored.
Support efforts may require the customer to replace any non-HPE Aruba transceiver/DAC with an equivalent supported HPE Aruba branded transceiver/DAC.
Transceiver technologies enabled by this feature contains a list of enabled technologies for this feature.
Transceiver technologies enabled by this feature
| FP-LX LC |
| SFP-LH LC |
| SFP-LX LC |
| SFP-SX LC |
| 1000BX-D SFP-LC |
| 1000BX-U SFP-LC |
| 1S000Base-T |
| 100-FX SFP-LC |
| 100-BX-D SFP-LC |
| 100-BX-U SFP-LC |
| 10-GbE SFP+ SR |
| 10-GbE SFP+ LR |
| 10-GbE SFP+ LRM[a] |
| 10-GbE SFP+ ER |
| 10-GbE SFP+ 1m Direct Attach Cable |
| 10-GbE SFP+ 3m Direct Attach Cable |
| 10-GbE SFP+ 5m Direct Attach Cable[a] |
| 10-GbE SFP+ 7m Direct Attach Cable[a] |
| QSFP+ SR4 |
| QSFP+ LR4 |
| QSFP+ eSR4 |
| QSFP+ 1m Direct Attach |
| QSFP+ 3m Direct Attach |
| QSFP+ 5m Direct Attach |
[a] May not be enabled in certain switch platforms that do not support this technology. |
Allow unsupported transceivers
Configure unsupported transceivers by issuing the following CLI command (see CLI command):
allow-unsupported-transceiver [confirm]
The system displays a disclaimer message and requires a Y confirmation (unless the
confirmoption is specified).Do one of the following:
If any non-HPE Aruba transceivers are present in the switch before executing the command and you want to enable them, remove and reinsert them. If you do not do so, the transceivers will not be enabled.
If any non-HPE Aruba transceivers are not present in the switch and you want to enable them, insert them into the switch.
(Optional) Verify that non-HPE transceivers are now allowed:
show running-config
If non-HPE Aruba transceivers are now allowed, the output from this command includes the line
allow-unsupported-transceiver.For a complete description of the show config command, see the HPE ArubaOS-Switch Management and Configuration Guide (version 16.02 or later) for your switch series found at www.hpe.com/networking/support .
(Optional) List the enabled transceivers:
show tech transceivers
The output from this command is similar to the following:
Transceiver Technical Information: Port # | Type | Prod # | Serial # | Part # --------+-----------+------------+------------------+---------- A21 | 1000SX | J4858C | 3CA404J4BK | 1990-3662 H8 *| 1000SX | ?? | unsupported | J8 | ?? | ?? | unsupported |
NOTE: * Indicates an unsupported transceiver.
For a complete description of the show tech transceivers command, see the HPE ArubaOS-Switch Management and Configuration Guide (version 16.02) or later for your switch series found at www.hpe.com/networking/support .
Disable unsupported transceivers
To disable the unsupported-transceiver feature:
no allow-unsupported-transceiver
To validate that the feature is disabled, reinsert any non-HPE Aruba transceiver that was previously enabled and verify that it no longer is enabled.
(Optional) Verify that non-HPE transceivers are now disallowed:
show running-config
Your config will no longer have the
allow-unsupported-transceivercommand.For a complete description of the show config command, see the HPE ArubaOS-Switch Management and Configuration Guide version 16.02 or later for your switch series found at www.hpe.com/networking/support .
(Optional) List the enabled transceivers:
show tech transceivers
The output from this command shows any non-HPE transceivers inserted as
unsupported, theTypeshows??, and the port is not enabled.For a complete description of the show tech transceivers command, see the HPE ArubaOS-Switch Management and Configuration Guide version 16.02 or later for your switch series found at www.hpe.com/networking/support .
CLI command
Syntax
[no] allow-unsupported-transceiver [confirm]
Description
Allow non-HPE Aruba certified transceivers to
attempt to be used. See the QuickSpecs for a list of supported transceivers.
The no option disables the feature; only supported
transceivers will be allowed.
When the command is issued without the no option,
the following message is displayed and the user must agree for the
command to take effect:
Warning: The use of third-party transceivers is at your own risk. In the event that use of third-party transceivers causes a fault in the supporting HPE hardware, HPE may deny warranty replacement of the host product. In addition, should HPE determine that third-party transceivers may contribute to the faulty condition, HPE may require the user to install an HPE certified transceiver, at the user's sole expense. Do you agree, and do you wish to continue enabling? (Y/N)
Options
Operating notes
The following information is displayed for each installed transceiver:
Port number on which transceiver is installed.
Type of transceiver.
Product number — Includes revision letter, such as A, B, or C. If no revision letter follows a product number, this means that no revision is available for the transceiver.
Part number — Allows you to determine the manufacturer for a specified transceiver and revision number.
For a non-HPE switches installed transceiver (see line 23 The show tech transceivers command), no transceiver type, product number, or part information is displayed. In the Serial Number field,
non-operationalis displayed instead of a serial number.The following error messages may be displayed for a non-operational transceiver:
Enabling or disabling ports and configuring port mode (CLI)
You can configure one or more of the following port parameters.
Syntax:
[no]
interface <port-list> [<disable|enable>]Disables or enables the port for network traffic. Does not use the
noform of the command. (Default:enable.)
speed-duplex [<auto-10|10-full|10-half|100-full|100-half|auto|auto-100|1000-full>]Note that in the above Syntax:, you can substitute
intforinterface(for example,int <).port-list>Specifies the port's data transfer speed and mode. Does not use the
noform of the command. (Default:auto.)The 10/100 auto-negotiation feature allows a port to establish a link with a port at the other end at either 10 Mbps or 100 Mbps, using the highest mutual speed and duplex mode available. Only these speeds are allowed with this setting.
Examples:
To configure port C5 for auto-10-100, enter this command:
HP Switch(config)# int c5 speed-duplex auto-10-100
To configure ports C1 through C3 and port C6 for 100Mbps full-duplex, enter these commands:
HP Switch(config)# int c1-c3,c6 speed-duplex 100-full
Similarly, to configure a single port with the above command settings, you could either enter the same command with only the one port identified or go to the context level for that port and then enter the command. For example, to enter the context level for port C6 and then configure that port for 100FDx:
HP Switch(config)# int e c6 HP Switch(eth-C6)# speed-duplex 100-full
If port C8 was disabled, and you wanted to enable it and configure it for 100FDx with flow-control active, you could do so with either of the following command sets:
For more on flow control, see Enabling or disabling flow control (CLI).
Enabling or disabling flow control (CLI)
| NOTE: You must enable flow control on both ports in
a given link. Otherwise, flow control does not operate on the link and
appears as |
To disable flow control on some ports, while leaving it enabled on other ports, just disable it on the individual ports you want to exclude.
Syntax:
[no]
interface <port-list> flow-controlEnables or disables flow control packets on the port. The
noform of the command disables flow control on the individual ports. (Default: Disabled.)
Examples:
Suppose that:
You want to enable flow control on ports A1-A6.
Later, you decide to disable flow control on ports A5 and A6.
As a final step, you want to disable flow control on all ports.
Assuming that flow control is currently disabled on the switch, you would use these commands:
Configuring flow control for a series of ports
HP Switch(config)# int a1-a6 flow-control
HP Switch(config)# show interfaces brief
Status and Counters - Port Status
| Intrusion MDI Flow Bcast
Port Type | Alert Enabled Status Mode Mode Ctrl Limit
------ --------- + --------- ------- ------ ---------- ---- ---- -----
A1 10GbE-T | No Yes Up 1000FDx NA on 0
A2 10GbE-T | No Yes Up 10GigFD NA on 0
A3 10GbE-T | No Yes Up 10GigFD NA on 0
A4 10GbE-T | No Yes Up 10GigFD NA on 0
A5 10GbE-T | No Yes Up 10GigFD NA on 0
A6 10GbE-T | No Yes Up 10GigFD NA on 0
A7 10GbE-T | No Yes Down 10GigFD NA off 0
A8 10GbE-T | No Yes Up 10GigFD NA off 0
Continued from Configuring flow control for a series of ports
HP Switch(config)# no int a5-a6 flow-control
HP Switch(config)# show interfaces brief
Status and Counters - Port Status
| Intrusion MDI Flow Bcast
Port Type | Alert Enabled Status Mode Mode Ctrl Limit
------ --------- + --------- ------- ------ ---------- ---- ---- -----
A1 10GbE-T | No Yes Up 1000FDx NA on 0
A2 10GbE-T | No Yes Down 10GigFD NA on 0
A3 10GbE-T | No Yes Down 10GigFD NA on 0
A4 10GbE-T | No Yes Down 10GigFD NA on 0
A5 10GbE-T | No Yes Down 10GigFD NA off 0
A6 10GbE-T | No Yes Down 10GigFD NA off 0
A7 10GbE-T | No Yes Down 10GigFD NA off 0
A8 10GbE-T | No Yes Down 10GigFD NA off 0
Continued from Continued from Example 28
HP Switch(config)# no int a1-a4 flow-control
HP Switch(config)# show interfaces brief
Status and Counters - Port Status
| Intrusion MDI Flow Bcast
Port Type | Alert Enabled Status Mode Mode Ctrl Limit
------ --------- + --------- ------- ------ ---------- ---- ---- -----
A1 10GbE-T | No Yes Down 1000FDx NA off 0
A2 10GbE-T | No Yes Down 10GigFD NA off 0
A3 10GbE-T | No Yes Down 10GigFD NA off 0
A4 10GbE-T | No Yes Down 10GigFD NA off 0
A5 10GbE-T | No Yes Down 10GigFD NA off 0
A6 10GbE-T | No Yes Down 10GigFD NA off 0
A7 10GbE-T | No Yes Down 10GigFD NA off 0
A8 10GbE-T | No Yes Down 10GigFD NA off 0
Configuring a broadcast limit
Broadcast-Limit on switches covered in this guide is configured on a per-port basis. You must be at the port context level for this command to work, for example:
Broadcast-limit
Syntax:
broadcast-limit <0-99>Enables or disables broadcast limiting for outbound broadcasts on a selected port on the switch. The value selected is the percentage of traffic allowed, for example,
broadcast-limit 5allows 5% of the maximum amount of traffic for that port. A value of zero disables broadcast limiting for that port.
NOTE: You must switch to port context level before issuing the
broadcast-limitcommand.This feature is not appropriate for networks requiring high levels of IPX or RIP broadcast traffic.
Syntax:
show configDisplays the startup-config file. The broadcast limit setting appears here if enabled and saved to the startup-config file.
Syntax:
show running-configDisplays the running-config file. The broadcast limit setting appears here if enabled. If the setting is not also saved to the startup-config file, rebooting the switch returns broadcast limit to the setting currently in the startup-config file.
For example, the following command enables broadcast limiting of 1 percent of the traffic rate on the selected port on the switch:
For a one Gbps port this results in a broadcast traffic rate of ten Mbps.
Port shutdown with broadcast storm
A LAN broadcast storm arises when an excessively high rate of broadcast packets flood the LAN. Occurrence of LAN broadcast storm disrupts traffic and degrades network performance. To prevent LAN traffic from being disrupted, an enhancement of fault-finder commands adds new options, and the corresponding MIBs, that trigger a port disablement when a broadcast storm is detected on that port.
Under this enhancement, the CLI commands given only supports broadcast traffic and not multicast and unicast types of traffic.
The waiting period range for re-enabling ports is 0 to 604800 seconds. The default waiting period to re-enable a port is zero which prevents the port from automatic re-enabling.
| NOTE: Avoid port flapping when choosing the waiting period by considering the time to re-enable carefully. |
Use the following commands to configure the broadcast-storm on a port.
Syntax:
[no]
fault-finder broadcast-storm [ethernet] <port-list> action [warn|warn-and-disable <seconds>] [percent <percent>|pps <rate>]
To remove the current configuration of broadcast-storm on a port, use:
Syntax:
no fault-finder broadcast-storm [ethernet] <port-list>
broadcast-stormConfigure broadcast storm control.
ppsRising threshold level in number of broadcast packets per second.
percentRising threshold level as a percentage of bandwidth of the port. The percentage is calculated on 64 byte packet size.
warnLog the event only.
warn-and-disableLog the event and disable the port.
secondsRe-enable the port after waiting for the specified number of seconds. Default is not to re-enable.
Configuration examples:
HP Switch(config)# fault-finder broadcast-storm [ethernet] <A1> action [warn-and-disable <65535>]< percent 10>HP Switch(config)# fault-finder broadcast-storm [ethernet] <A2> action [warn-and-disable <pps 100>HP Switch(config)# fault-finder broadcast-storm [ethernet] <A22> action [warn] <pps 100>
Viewing broadcast storm
Use the following command to display the broadcast-storm-control configuration.
Syntax:
Examples:
HP Switch# show fault-finder broadcast-storm [A1]
Port Bcast Storm Port Status Rising Threshold Action Disable Timer Disable Timer Left A1 Yes Down 10% warn-and-disable 65535 — HP Switch (config)# show fault-finder broadcast-storm
Port Bcast Storm Port Status Rising Threshold Action Disable Timer Disable Timer Left A1 Yes Down 200 pps warn-and-disable 10 9 HP Switch (config)# show fault-finder broadcast-storm A1
Port Bcast Storm Port Status Rising Threshold Action Disable Timer Disable Timer Left A1 No Up — none — — HP Switch (config)# show fault-finder broadcast-storm
Port Bcast Storm Port Status Rising Threshold Action Disable Timer Disable Timer Left A1 Yes Up 75% warn — —
SNMP MIB
SNMP support will be provided through the following MIB objects:
hpicfFfBcastStormControlPortConfig OBJECT IDENTIFIER
:: = { hpicfFaultFinder 5 }
hpicfFfBcastStormControlPortConfigTable OBJECT-TYPE
syntax sequence: HpicfFfBcastStormControlPortConfigEntry
max-access: not-accessible
status: current
description: This table provides information about broadcast storm control configuration of all ports.
::= {hpicfFfBcastStormControlPortConfig 1}
hpicfFfBcastStormControlPortConfigEntry OBJECT-TYPE
syntax HpicfFfBcastStormControlPortConfigEntry
max-access: not-accessible
status: current
description: This object provides information about broadcast storm control configuration of each port.
index: {hpicfffbcaststormcontrolportindex}
::= {hpicfFfBcastStormControlPortConfigTable 1}
hpicfFfBcastStormControlPortConfigEntry ::=
Syntax sequence:
hpicfFfBcastStormControlPortIndex InterfaceIndex,
hpicfFfBcastStormControlMode Integer,
hpicfFfBcastStormControlRisingpercent Integer32,
hpicfFfBcastStormControlRisingpps Integer32,
hpicfFfBcastStormControlAction Integer,
hpicfFfBcastStormControlPortDisableTimer Unsigned32
hpicfFfBcastStormControlPortIndex OBJECT-TYPE
Syntax: Interfaceindex
max-access: not-accessible
status: current
description: The Index Value Which Uniquely Identifies A Row In The Interfaces Table.
::= {hpicfFfBcastStormControlPortConfigEntry 1}
hpicfFfBcastStormControlMode OBJECT-TYPE
Syntax Integer: disabled(1), Bcastrisinglevelpercent(2), Bcastrisinglevelpps(3)
max-access: read-write
status: current
description: The broadcast storm control mode of a port. A value of disable (1) indicates that no rising threshold value is set for broadcast storm traffic on this port. A value of bcastrisinglevelpercent (2) indicates that the rising threshold rate for broadcast storm traffic is configured in percentage of port bandwidth. A value of bcastrisinglevelpps (3) indicates that the rising threshold rate for broadcast storm traffic is configured in packets per second.
DEFVAL: disabled
::= {hpicfFfBcastStormControlPortConfigEntry 2}
hpicfFfBcastStormControlRisingpercent OBJECT-TYPE
Syntax Integer32 (1..100)
max-access: read-write
status: current
description: This Is The Rising Threshold Level in percent of bandwidth of the port. hpicfFfBcastStormControlAction occurs when broadcast traffic reaches this level.
::= {hpicfFfBcastStormControlPortConfigEntry 3}
hpicfFfBcastStormControlRisingpps OBJECT-TYPE
Syntax Integer32 (1..10000000)
max-access: read-write
status: current
description: This object indicates the rising threshold for broadcast storm control. This value is in packets-per-second of received broadcast traffic. hpicfffbcaststormcontrolaction object takes action when broadcast traffic reaches this level.
::= {hpicfFfBcastStormControlPortConfigEntry 4}
hpicfFfBcastStormControlAction OBJECT-TYPE
Syntax integer: none(1), warn(2), warnanddisable(3)
max-access: read-write
status: current
Description: This object defines the action taken by the switch when a broadcast storm occurs on a port. A value of none (1) indicates that no action is performed. A value of warn (2) indicates that an event is logged when broadcast traffic crosses the threshold value set on that port. A value of warn-and-disable (3) indicates that the port is disabled and an event is logged as soon as the broadcast traffic reaches the threshold value set on that port.
DEFVAL: none
::= {hpicfFfBcastStormControlPortConfigEntry 5}
hpicfFfBcastStormControlPortDisableTimer OBJECT-TYPE
Syntax Unsigned32 (0..604800)
Units: seconds
max-access: read-write
status: current
Description: This object specifies the time period for which the port remains in disabled state. A port is disabled when broadcast traffic reaches the threshold value set on that port. This time period is specified in seconds. The default value is zero which means that the port remains disabled and is not enabled again.
DEFVAL {0}
::= {hpicfFfBcastStormControlPortConfigEntry 6}
Configuring auto-MDIX
Copper ports on the switch can automatically detect the type of cable configuration (MDI or MDI-X) on a connected device and adjust to operate appropriately.
This means you can use a "straight-through" twisted-pair cable or a "crossover" twisted-pair cable for any of the connections—the port makes the necessary adjustments to accommodate either one for correct operation. The following port types on your switch support the IEEE 802.3ab standard, which includes the "Auto MDI/MDI-X" feature:
10/100-TX xl module ports
100/1000-T xl module ports
10/100/1000-T xl module ports
Using the above ports:
If you connect a copper port using a straight-through cable on a switch to a port on another switch or hub that uses MDI-X ports, the switch port automatically operates as an MDI port.
If you connect a copper port using a straight-through cable on a switch to a port on an end node—such as a server or PC—that uses MDI ports, the switch port automatically operates as an MDI-X port.
Auto-MDIX was developed for auto-negotiating devices, and was shared with the IEEE for the development of the IEEE 802.3ab standard. Auto-MDIX and the IEEE 802.3ab Auto MDI/MID-X feature are completely compatible. Additionally, Auto-MDIX supports operation in forced speed and duplex modes.
For more information on this subject, see the IEEE 802.3ab standard reference. For more information on MDI-X, the installation and getting started guide for your switch.
Manual override
If you require control over the MDI/MDI-X feature, you can set the switch to either of these non-default modes:
Manual MDI
Manual MDI-X
Cable types for auto and manual MDI/MDI-X settings shows the cabling requirements for the MDI/MDI-X settings.
Cable types for auto and manual MDI/MDI-X settings
Setting |
MDI/MDI-X device type | |
|---|---|---|
PC or other MDI device type |
Switch, hub, or other MDI-X device | |
Manual MDI |
Crossover cable |
Straight-through cable |
Manual MDI-X |
Straight-through cable |
Crossover cable |
Auto-MDI-X (the default) |
Either crossover or straight-through cable | |
The AutoMDIX features apply only to copper port switches using twisted-pair copper Ethernet cables.
Configuring auto-MDIX (CLI)
The auto-MDIX features apply only to copper port switches using twisted-pair copper Ethernet cables. For information about auto-MDIX, see Configuring auto-MDIX.
Syntax:
interface <port-list> mdix-mode <auto-mdix|mdi|mdix>
auto-mdixThe automatic,default setting. This configures the port for automatic detection of the cable (either straight-through or crossover).
mdiThe manual mode setting that configures the port for connecting to either a PC or other MDI device with a crossover cable, or to a switch, hub, or other MDI-X device with a straight-through cable.
mdixThe manual mode setting that configures the port for connecting to either a switch, hub, or other MDI-X device with a crossover cable, or to a PC or other MDI device with a straight-through cable.
Syntax:
Syntax:
show interfaces brief
Where a port is linked to another device, this command lists the MDI mode the port is currently using.
In the case of ports configured for
Auto(auto-mdix), the MDI mode appears as eitherMDIorMDIX, depending upon which option the port has negotiated with the device on the other end of the link.In the case of ports configured for
MDIorMDIX, the mode listed in this display matches the configured setting.If the link to another device was up, but has gone down, this command shows the last operating MDI mode the port was using.
If a port on a given switch has not detected a link to another device since the last reboot, this command lists the MDI mode to which the port is currently configured.
The show interfaces config displays
the following data when port A1 is configured for auto-mdix,
port A2 is configured for mdi, and port A3 is configured
for mdix:
Displaying the current MDI configuration
HP Switch(config)# show interfaces config Port Settings Port Type | Enabled Mode Flow Ctrl MDI ------ --------- + ------- ------------ --------- ---- A1 10GbE-T | Yes Auto Disable Auto A2 10GbE-T | Yes Auto Disable MDI A3 10GbE-T | Yes Auto Disable MDIX A4 10GbE-T | Yes Auto Disable Auto A5 10GbE-T | Yes Auto Disable Auto A6 10GbE-T | Yes Auto Disable Auto A7 10GbE-T | Yes Auto Disable Auto A8 10GbE-T | Yes Auto Disable Auto
Displaying the current MDI operating mode
HP Switch(config)# show interfaces brief
Status and Counters - Port Status
| Intrusion MDI Flow Bcast
Port Type | Alert Enabled Status Mode Mode Ctrl Limit
------ --------- + --------- ------- ------ ---------- ---- ---- -----
A1 10GbE-T | No Yes Up 1000FDx MDIX off 0
A2 10GbE-T | No Yes Down 10GigFD MDI off 0
A3 10GbE-T | No Yes Down 10GigFD MDIX off 0
A4 10GbE-T | No Yes Down 10GigFD Auto off 0
A5 10GbE-T | No Yes Down 10GigFD Auto off 0
A6 10GbE-T | No Yes Down 10GigFD Auto off 0
A7 10GbE-T | No Yes Down 10GigFD Auto off 0
A8 10GbE-T | No Yes Down 10GigFD Auto off 0