Configuring short sequence number header format negotiation
By default, an MP bundle receives and transmits fragments with long sequence numbers.
To receive fragments with short sequence numbers, the local end should request the peer to transmit short sequence numbers during LCP negotiation. After the negotiation succeeds, the peer transmits fragments with short sequence numbers.
To transmit fragments with short sequence numbers, the local end should ask the peer to send a request for receiving short sequence numbers during LCP negotiation. After the negotiation succeeds, the local end transmits fragments with short sequence numbers.
The sequence number format (long or short) of an MP bundle depends on the configuration of the first channel joining the MP bundle.
To negotiate the use of short sequence numbers on a dialer MP bundle, configure the command on the dialer interfaces and the ISDN D channels. To negotiate the use of short sequence numbers on a common MP bundle, use the command on all its channels. Note that the command will cause PPP re-negotiation.
To configure short sequence number header format negotiation for MP:
Step | Command | Remarks |
|---|---|---|
1. Enter system view | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Trigger MP short sequence number header negotiation, specifying that the interface receive fragments with short sequence numbers after the negotiation succeeds. | ppp mp short-sequence | By default, long sequence number header format negotiation is performed. |