User manual

6 PPP and MP configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
6-8 Nortel Networks Inc. Issue 5.3 (
30 March 2009)
No. Procedure
2 Enabling PPP MRU negotiation
3 Checking the configuration
6.2.2 Encapsulating the interface with PPP
Do as follows on the routers:
Step 1 Run:
system-view
The system view appears.
Step 2 Run:
interface interface-type interface-number
The interface view appears.
Step 3 Run:
link-protocol ppp
The command configures the link layer protocol as PPP.
By default, the protocol in the link layer is PPP for the serial and POS interface.
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6.2.3 Enabling PPP MRU negotiation
Do as follows on the routers:
Step 1 Run:
system-view
The system view appears.
Step 2 Run:
interface interface-type interface-number
The interface view appears.
Step 3 Run:
ppp mru-negotiate { ipv4 | ipv6 }
The command enables PPP MRU negotiation.
By default, the link control layer will perform IPv4 MRU negotiation.
If you configure IPv6 MTU for an interface, you need to enable PPP IPv6 MRU negotiation.
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