3Com MSR 30, MSR 50 manual Mpls L3VPN Configuration Commands

1716 CHAPTER 98: MPLS L3VPN CONFIGURATION COMMANDS

cost: Cost for the sham link. It ranges from 1 to 65,535 and defaults to 1.

dead-interval: Dead Interval in seconds. It ranges from 1 to 32,768 and defaults to

40.It must be equal to the dead interval of the router on the other end of the virtual link and be at least four times the hello interval.

hello-interval: Interval at which the interface sends Hello packets. It ranges from 1 to 8,192 seconds and defaults to 10 seconds. It must be equal to the hello interval of the router on the other end of the virtual link.

retrans-interval: Interval at which the interface retransmits LSAs. It ranges from 1 to 8,192 seconds and defaults to 5 seconds.

delay: Delay interval before the interface sends an LSA. It ranges from 1 to 8,192 seconds and defaults to 1 second.

simple [ cipher plain ] password1: Uses simple authentication. If you specify neither the cipher nor the plain keyword, the password1 argument is a string of 1 to 8 characters. For the plain mode, the password1 argument is a string of 1 to 8 characters. For the cipher mode, the password1 argument can be either a string of 1 to 8 characters in plain text, or a string of 24 characters in cipher text.

md5: Uses MD5 algorithm for authentication.

hmac-md5: Uses HMAC-MD5 algorithm for authentication.

key-id: Authentication key ID of the interface, in the range 1 to 255. It must be the same as that of the peer.

cipher: Uses cipher text.

plain: Uses plain text.

password2: Password string, case sensitive. If you specify neither the cipher nor the plain keyword, it is a string of 1 to 16 characters in plain text or a string of 24 characters in cipher text. For the plain mode, it is a string of 1 to 16 characters. For the cipher mode, it can be either a string of 1 to 16 characters in plain text, or a string of 24 characters in cipher text.

Description Use the sham link command to configure a sham link.

Use the undo sham link command with no optional keyword to remove a sham link.

Use the undo sham link command with optional keywords to restore the defaults of the parameters for a sham link.

If two PEs belong to the same AS and a backdoor link is present, a sham link can be established between them.

For plain text authentication, the default authentication key type is plain. For authentication using MD5 algorithm or HMAC-MD5 algorithm, the default authentication key type is cipher.