3Com MSR 50, MSR 30 manual Rp holdtime PIM view, Crp-policy PIM view

1391

c-rp holdtime (PIM view)

Syntax c-rp holdtime interval

undo c-rp holdtime

View Public instance PIM view, VPN instance PIM view

Parameter interval: C-RP timeout in seconds, with an effective range of 1 to 65,535.

Description Use the c-rp holdtime command to configure the global C-RP timeout time, namely the length of time the BSR waits before it must receive a C-RP-Adv message.

Use the undo c-rp holdtime command to restore the default setting.

By default, the C-RP timeout time is 150 seconds.

Because a non-BSR router refreshes its C-RP timeout time through BSR bootstrap messages, to prevent loss of BSR bootstrap messages, make sure that the C-RP timeout time is not smaller than the interval at which the BSR sends bootstrap messages. The recommended C-RP timeout setting is 2.5 times the bootstrap interval or longer.

Related command: c-rp (PIM view) and c-bsr interval (PIM view).

Example # Set the global C-RP timeout time to 200 seconds in the public instance.

<Sysname> system-view

[Sysname] pim

[Sysname-pim] c-rp holdtime 200

crp-policy (PIM view)

Syntax crp-policy acl-number

undo crp-policy

View Public instance PIM view, VPN instance PIM view

Parameter acl-number: Advanced ACL number, in the range of 3000 to 3999. When the ACL is defined, the source keyword in the rule command specifies the address of a C-RP and the destination keyword specifies the address range of the multicast groups that the C-RP will serve.

Description Use the crp-policycommand to configure a legal C-RP address range and the range of served multicast groups, so as to guard against C-RP spoofing.