display isis packet

Use display isis packet to display IS-IS packet statistics.

Syntax

display isis packet { csnp | hello | lsp | psnp } by-interface [ verbose ] [ interface-type interface-number ] [ process-id ]

display isis packet { csnp | hello | lsp | psnp } [ verbose ] [ process-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

csnp: Displays CSNP packet statistics.

hello: Displays hello packet statistics.

lsp: Displays LSP packet statistics.

psnp: Displays PSNP packet statistics.

by-interface: Displays packet statistics on a per-interface basis.

verbose: Displays detailed packet statistics.

interface-type interface-number: Specifies an interface by its type and number. If you do not specify this option, the command displays IS-IS packet statistics for all interfaces.

process-id: Specifies an IS-IS process by its ID in the range of 1 to 65535. If you do not specify this argument, the command displays packet statistics for all IS-IS processes.

Examples

# Display detailed hello packet statistics on a per-interface basis.

<Sysname> display isis packet hello by-interface verbose

                     Hello packet information for IS-IS(1)
                     -------------------------------------

  Interface:  Vlan-interface10
  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length     : 0          Bad header length          : 0
    Jumbo packet          : 0          Bad protocol description   : 0
    Bad protocol ID       : 0          Bad protocol version       : 0
    Unknown packet type   : 0          Bad max area count         : 0
    Bad system ID length  : 0          Bad circuit type           : 0
    Bad auth TLV: 0                    Bad area address TLV       : 0
    Auth failure          : 0          Excessive area addresses   : 0
    Bad NBR TLV           : 0          Excessive auth TLVs        : 0
    Excessive IF Addr TLVs: 0          Excessive IF addresses     : 0
    Bad IF address TLV    : 0          Duplicate system ID        : 0
    Bad TLV length        : 0          Bad IP address             : 0
    Duplicate IP address  : 0          Mismatched area address    : 0
    Mismatched protocol   : 0          Mismatched network type    : 0
    Bad IPv6 address TLV  : 0          Bad IPv6 address           : 0
    Duplicate IPv6 address: 0          Bad MT ID TLV              : 0
    SNPA conflict (LAN)   : 0          Excessive NBR SNPAs (LAN)  : 0
    Mismatched level (LAN): 0          Bad 3-Way option TLV (P2P) : 0
    No common MT ID (P2P) : 0          Bad circuit ID (P2P)       : 0

# Display detailed hello packet statistics.

<Sysname> display isis packet hello verbose

                     Hello packet information for IS-IS(1)
                     -------------------------------------

  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length      : 0          Bad header length          : 0
    Jumbo packet           : 0          Bad protocol description   : 0
    Bad protocol ID        : 0          Bad protocol version       : 0
    Unknown packet type    : 0          Bad max area count         : 0
    Bad system ID length   : 0          Bad circuit type           : 0
    Bad auth TLV           : 0          Bad area address TLV       : 0
    Auth failure           : 0          Excessive area addresses   : 0
    Bad NBR TLV            : 0          Excessive auth TLVs        : 0
    Excessive IF Addr TLVs : 0          Excessive IF addresses     : 0
    Bad IF address TLV     : 0          Duplicate system ID        : 0
    Bad TLV length         : 0          Bad IP address             : 0
    Duplicate IP address   : 0          Mismatched area address    : 0
    Mismatched protocol    : 0          Mismatched network type    : 0
    Bad IPv6 address TLV   : 0          Bad IPv6 address           : 0
    Duplicate IPv6 address : 0          Bad MT ID TLV              : 0
    SNPA conflict (LAN)    : 0          Excessive NBR SNPAs (LAN)  : 0
    Mismatched level (LAN) : 0          Bad 3-Way option TLV (P2P) : 0
    No common MT ID (P2P)  : 0          Bad circuit ID (P2P)       : 0

Table 69: Command output

Field	Description
Input packets with errors	Statistics for packets with the following errors: Bad packet length—Invalid packet length. Bad header length—Invalid header length. Jumbo packet—The packet length exceeds the buffer size or the interface MTU. Bad protocol description—Invalid protocol description. Bad protocol ID—Invalid protocol identifier. Bad protocol version—Invalid protocol version. Unknown packet type—Unknown packet type. Bad max area count—Invalid maximum number of area addresses. Bad system ID length—Invalid system ID length. Bad circuit type—Invalid interface type. Bad auth TLV—Invalid authentication TLV. Bad area address TLV—Invalid area address TLV. Auth failure—Authentication failure. Excessive area addresses—Excessive area addresses. Bad NBR TLV—Invalid neighbor TLV. Excessive auth TLVs—Excessive authentication TLVs. Excessive IF Addr TLVs—Excessive interface address TLVs. Excessive IF addresses—Excessive interface addresses. Bad IF address TLV—Invalid interface address TLV. Duplicate system ID—Duplicate system IDs. Bad TLV length—Invalid TLV length. Bad IP address—The IP address does not belong to the same network as the local interface address. Duplicate IP address—Duplicate IP addresses. Mismatched area address—Mismatched area addresses. Mismatched protocol—Mismatched protocols. Mismatched network type—Mismatched network types. Bad IPv6 address TLV—Invalid IPv6 address TLV. Bad IPv6 address—Invalid IPv6 address. Duplicate IPv6 address—Duplicate IPv6 addresses. SNPA conflict (LAN)—SNPA conflict. Excessive NBR SNPAs (LAN)—Excessive neighbor SNPAs. Mismatched level (LAN)—Mismatched levels. Bad 3-Way option TLV (P2P)—Invalid three-way handshake information. Bad circuit ID (P2P)—Invalid circuit ID.

Field

Description

Input packets with errors

Statistics for packets with the following errors:

Bad packet length—Invalid packet length.
Bad header length—Invalid header length.
Jumbo packet—The packet length exceeds the buffer size or the interface MTU.
Bad protocol description—Invalid protocol description.
Bad protocol ID—Invalid protocol identifier.
Bad protocol version—Invalid protocol version.
Unknown packet type—Unknown packet type.
Bad max area count—Invalid maximum number of area addresses.
Bad system ID length—Invalid system ID length.
Bad circuit type—Invalid interface type.
Bad auth TLV—Invalid authentication TLV.
Bad area address TLV—Invalid area address TLV.
Auth failure—Authentication failure.
Excessive area addresses—Excessive area addresses.
Bad NBR TLV—Invalid neighbor TLV.
Excessive auth TLVs—Excessive authentication TLVs.
Excessive IF Addr TLVs—Excessive interface address TLVs.
Excessive IF addresses—Excessive interface addresses.
Bad IF address TLV—Invalid interface address TLV.
Duplicate system ID—Duplicate system IDs.
Bad TLV length—Invalid TLV length.
Bad IP address—The IP address does not belong to the same network as the local interface address.
Duplicate IP address—Duplicate IP addresses.
Mismatched area address—Mismatched area addresses.
Mismatched protocol—Mismatched protocols.
Mismatched network type—Mismatched network types.
Bad IPv6 address TLV—Invalid IPv6 address TLV.
Bad IPv6 address—Invalid IPv6 address.
Duplicate IPv6 address—Duplicate IPv6 addresses.
SNPA conflict (LAN)—SNPA conflict.
Excessive NBR SNPAs (LAN)—Excessive neighbor SNPAs.
Mismatched level (LAN)—Mismatched levels.
Bad 3-Way option TLV (P2P)—Invalid three-way handshake information.
Bad circuit ID (P2P)—Invalid circuit ID.

# Display detailed LSP packet statistics on a per-interface basis.

<Sysname> display isis packet lsp by-interface verbose

                      LSP packet information for IS-IS(1)
                      -----------------------------------

  Interface:  Vlan-interface10
  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length   : 0          Bad header length        : 0
    Jumbo packet        : 0          SNPA conflict (LAN)      : 0
    Smaller than header : 0          Bad protocol description : 0
    Bad protocol ID     : 0          Bad protocol version     : 0
    Unknown packet type : 0          Bad max area count       : 0
    No active NBR       : 0          Bad system ID length     : 0
    Mismatched level    : 0          Illegal IS type          : 0
    Sequence number is 0: 0          Checksum is 0            : 0
    Incorrect checksum  : 0          Bad TLV length           : 0
    Mismatched protocol : 0          Bad auth TLV   : 0
    Auth failure        : 0          Excessive auth TLVs      : 0
    Bad NBR TLV         : 0          Bad extended IS TLV      : 0
    Bad IF address TLV  : 0          Bad IPv6 IF address TLV  : 0
    Bad alias TLV       : 0          Bad IP reachability TLV  : 0
    Bad MT IS TLV       : 0          Bad area address TLV     : 0
    Bad MT ID TLV       : 0          Bad MT IP TLV            : 0
    Bad MT IPv6 TLV     : 0          Bad IPv6 reachability TLV: 0
    Bad router ID TLV   : 0

# Display detailed LSP packet statistics.

<Sysname> display isis packet lsp verbose

                      LSP packet information for IS-IS(1)
                      -----------------------------------

  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length    : 0          Bad header length         : 0
    Jumbo packet         : 0          SNPA conflict (LAN)       : 0
    Smaller than header  : 0          Bad protocol description  : 0
    Bad protocol ID      : 0          Bad protocol version      : 0
    Unknown packet type  : 0          Bad max area count        : 0
    No active NBR        : 0          Bad system ID length      : 0
    Mismatched level     : 0          Illegal IS type           : 0
    Sequence number is 0 : 0          Checksum is 0             : 0
    Incorrect checksum   : 0          Bad TLV length            : 0
    Mismatched protocol  : 0          Bad auth TLV              : 0
    Auth failure         : 0          Excessive auth TLVs       : 0
    Bad NBR TLV          : 0          Bad extended IS TLV       : 0
    Bad IF address TLV   : 0          Bad IPv6 IF address TLV   : 0
    Bad alias TLV        : 0          Bad IP reachability TLV   : 0
    Bad MT IS TLV        : 0          Bad area address TLV      : 0
    Bad MT ID TLV        : 0          Bad MT IP TLV             : 0
    Bad MT IPv6 TLV      : 0          Bad IPv6 reachability TLV : 0
    Bad router ID TLV    : 0

Table 70: Command output

Field	Description
Input packets with errors	Statistics for packets with the following errors: Bad packet length—Invalid packet length. Bad header length—Invalid header length. Jumbo packet—The packet length exceeds the maximum length of packets that can be received. SNPA conflict (LAN)—SNPA conflict. Smaller than header—The packet length is smaller than the fixed header length. Bad protocol description—Invalid protocol description. Bad protocol ID—Invalid protocol identifier. Bad protocol version—Invalid protocol version. Unknown packet type—Unknown packet type. Bad max area count—Invalid maximum number of area addresses. No active NBR—The packet is from an unknown neighbor. Bad system ID length—Invalid system ID length. Mismatched level—Mismatched levels. Illegal IS type—Invalid IS type. Sequence number is 0—The sequence number is 0. Checksum is 0—The checksum is 0. Incorrect checksum—Incorrect checksum. Bad TLV length—Invalid TLV length. Mismatched protocol—Mismatched protocols. Bad auth TLV—Invalid authentication TLV. Auth failure—Authentication failure. Excessive auth TLVs—Excessive authentication TLVs. Bad NBR TLV—Invalid neighbor TLV. Bad extended IS TLV—Invalid extended IS TLV. Bad IF address TLV—Invalid interface address TLV. Bad IPv6 IF address TLV—Invalid IPv6 interface address TLV. Bad alias TLV—Invalid alias TLV. Bad IP reachability TLV—Invalid IP reachability TLV. Bad area address TLV—Invalid area address TLV. Bad MT IPv6 TLV—Invalid IPv6 topology TLV. Bad IPv6 reachability TLV—Invalid IPv6 reachability TLV. Bad router ID TLV—Invalid router ID TLV.

Field

Description

Input packets with errors

Statistics for packets with the following errors:

Bad packet length—Invalid packet length.
Bad header length—Invalid header length.
Jumbo packet—The packet length exceeds the maximum length of packets that can be received.
SNPA conflict (LAN)—SNPA conflict.
Smaller than header—The packet length is smaller than the fixed header length.
Bad protocol description—Invalid protocol description.
Bad protocol ID—Invalid protocol identifier.
Bad protocol version—Invalid protocol version.
Unknown packet type—Unknown packet type.
Bad max area count—Invalid maximum number of area addresses.
No active NBR—The packet is from an unknown neighbor.
Bad system ID length—Invalid system ID length.
Mismatched level—Mismatched levels.
Illegal IS type—Invalid IS type.
Sequence number is 0—The sequence number is 0.
Checksum is 0—The checksum is 0.
Incorrect checksum—Incorrect checksum.
Bad TLV length—Invalid TLV length.
Mismatched protocol—Mismatched protocols.
Bad auth TLV—Invalid authentication TLV.
Auth failure—Authentication failure.
Excessive auth TLVs—Excessive authentication TLVs.
Bad NBR TLV—Invalid neighbor TLV.
Bad extended IS TLV—Invalid extended IS TLV.
Bad IF address TLV—Invalid interface address TLV.
Bad IPv6 IF address TLV—Invalid IPv6 interface address TLV.
Bad alias TLV—Invalid alias TLV.
Bad IP reachability TLV—Invalid IP reachability TLV.
Bad area address TLV—Invalid area address TLV.
Bad MT IPv6 TLV—Invalid IPv6 topology TLV.
Bad IPv6 reachability TLV—Invalid IPv6 reachability TLV.
Bad router ID TLV—Invalid router ID TLV.

# Display detailed CSNP packet statistics on a per-interface basis.

<Sysname> display isis packet csnp by-interface verbose

                      CSNP packet information for IS-IS(1)
                      ------------------------------------

  Interface:  Vlan-interface10
  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length  : 0          Bad header length       : 0
    Jumbo packet       : 0          SNPA conflict (LAN)     : 0
    Smaller than header: 0          Bad protocol description: 0
    Bad protocol ID    : 0          Bad protocol version    : 0
    Unknown packet type: 0          Bad max area count      : 0
    No active NBR      : 0          Bad system ID length    : 0
    Mismatched level   : 0          Bad TLV length          : 0
    Auth failure       : 0          Bad auth TLV            : 0
    Bad LSP TLV length : 0          Excessive auth TLVs     : 0
    Excessive LSPs     : 0          Bad LSP ID              : 0

# Display detailed CSNP packet statistics.

<Sysname> display isis packet csnp verbose

                      CSNP packet information for IS-IS(1)
                      ------------------------------------

  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length   : 0          Bad header length        : 0
    Jumbo packet        : 0          SNPA conflict (LAN)      : 0
    Smaller than header : 0          Bad protocol description : 0
    Bad protocol ID     : 0          Bad protocol version     : 0
    Unknown packet type : 0          Bad max area count       : 0
    No active NBR       : 0          Bad system ID length     : 0
    Mismatched level    : 0          Bad TLV length           : 0
    Auth failure        : 0          Bad auth TLV             : 0
    Bad LSP TLV length  : 0          Excessive auth TLVs      : 0
    Excessive LSPs      : 0          Bad LSP ID               : 0

Table 71: Command output

Field	Description
Input packets with errors	Statistics for packets with the following errors: Bad packet length—Invalid packet length. Bad header length—Invalid header length. Jumbo packet—The packet length exceeds the maximum length of packets that can be received. SNPA conflict (LAN)—SNPA conflict. Smaller than header—The packet length is smaller than the fixed header length. Bad protocol description—Invalid protocol description. Bad protocol ID—Invalid protocol identifier. Bad protocol version—Invalid protocol version. Unknown packet type—Unknown packet type. Bad max area count—Invalid maximum number of area addresses. No active NBR—The packet is from an unknown neighbor. Bad system ID length—Invalid system ID length. Mismatched level—Mismatched levels. Bad TLV length—Invalid TLV length. Auth failure—Authentication failure. Bad auth TLV—Invalid authentication TLV. Bad LSP TLV length—Invalid LSP TLV length. Excessive auth TLVs—Excessive authentication TLVs. Excessive LSPs—Excessive LSPs. Bad LSP ID—Invalid LSP ID.

Field

Description

Input packets with errors

Statistics for packets with the following errors:

Bad packet length—Invalid packet length.
Bad header length—Invalid header length.
Jumbo packet—The packet length exceeds the maximum length of packets that can be received.
SNPA conflict (LAN)—SNPA conflict.
Smaller than header—The packet length is smaller than the fixed header length.
Bad protocol description—Invalid protocol description.
Bad protocol ID—Invalid protocol identifier.
Bad protocol version—Invalid protocol version.
Unknown packet type—Unknown packet type.
Bad max area count—Invalid maximum number of area addresses.
No active NBR—The packet is from an unknown neighbor.
Bad system ID length—Invalid system ID length.
Mismatched level—Mismatched levels.
Bad TLV length—Invalid TLV length.
Auth failure—Authentication failure.
Bad auth TLV—Invalid authentication TLV.
Bad LSP TLV length—Invalid LSP TLV length.
Excessive auth TLVs—Excessive authentication TLVs.
Excessive LSPs—Excessive LSPs.
Bad LSP ID—Invalid LSP ID.

# Display detailed PSNP packet statistics on a per-interface basis.

<Sysname> display isis packet psnp by-interface verbose

                      PSNP packet information for IS-IS(1)
                      ------------------------------------

  Interface:  Vlan-interface10
  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length  : 0          Bad header length       : 0
    Jumbo packet       : 0          SNPA conflict (LAN)     : 0
    Smaller than header: 0          Bad protocol description: 0
    Bad protocol ID    : 0          Bad protocol version    : 0
    Unknown packet type: 0          Bad max area count      : 0
    No active NBR      : 0          Bad system ID length    : 0
    Mismatched level   : 0          Bad TLV length          : 0
    Auth failure       : 0          Bad auth TLV            : 0
    Bad LSP TLV length : 0          Excessive auth TLVs     : 0
    Excessive LSPs     : 0          Bad LSP ID              : 0

# Display detailed PSNP packet statistics.

<Sysname> display isis packet psnp verbose

                      PSNP packet information for IS-IS(1)
                      ------------------------------------

  Total output packets : 0          Total output error packets : 0
  Total input packets  : 0          Total input error packets  : 0

  Input packets with errors
    Bad packet length   : 0          Bad header length        : 0
    Jumbo packet        : 0          SNPA conflict (LAN)      : 0
    Smaller than header : 0          Bad protocol description : 0
    Bad protocol ID     : 0          Bad protocol version     : 0
    Unknown packet type : 0          Bad max area count       : 0
    No active NBR       : 0          Bad system ID length     : 0
    Mismatched level    : 0          Bad TLV length           : 0
    Auth failure        : 0          Bad auth TLV             : 0
    Bad LSP TLV length  : 0          Excessive auth TLVs      : 0
    Excessive LSPs      : 0          Bad LSP ID               : 0

Table 72: Command output

Field	Description
Input packets with errors	Statistics for packets with the following errors: Bad packet length—Invalid packet length. Bad header length—Invalid header length. Jumbo packet—The packet length exceeds the maximum length of packets that can be received. SNPA conflict (LAN)—SNPA conflict. Smaller than header—The packet length is smaller than the fixed header length. Bad protocol description—Invalid protocol description. Bad protocol ID—Invalid protocol identifier. Bad protocol version—Invalid protocol version. Unknown packet type—Unknown packet type. Bad max area count—Invalid maximum number of area addresses. No active NBR—The packet is from an unknown neighbor. Bad system ID length—Invalid system ID length. Mismatched level—Mismatched levels. Bad TLV length—Invalid TLV length. Auth failure—Authentication failure. Bad auth TLV—Invalid authentication TLV. Bad LSP TLV length—Invalid LSP TLV length. Excessive auth TLVs—Excessive authentication TLVs. Excessive LSPs—Excessive LSPs. Bad LSP ID—Invalid LSP ID.

Field

Description

Input packets with errors

Statistics for packets with the following errors:

Bad packet length—Invalid packet length.
Bad header length—Invalid header length.
Jumbo packet—The packet length exceeds the maximum length of packets that can be received.
SNPA conflict (LAN)—SNPA conflict.
Smaller than header—The packet length is smaller than the fixed header length.
Bad protocol description—Invalid protocol description.
Bad protocol ID—Invalid protocol identifier.
Bad protocol version—Invalid protocol version.
Unknown packet type—Unknown packet type.
Bad max area count—Invalid maximum number of area addresses.
No active NBR—The packet is from an unknown neighbor.
Bad system ID length—Invalid system ID length.
Mismatched level—Mismatched levels.
Bad TLV length—Invalid TLV length.
Auth failure—Authentication failure.
Bad auth TLV—Invalid authentication TLV.
Bad LSP TLV length—Invalid LSP TLV length.
Excessive auth TLVs—Excessive authentication TLVs.
Excessive LSPs—Excessive LSPs.
Bad LSP ID—Invalid LSP ID.

Related commands

reset isis packet

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