R2511-HP MSR Router Series Layer 3 - IP Routing Command Reference(V5)

166
Views
IS-IS view
Default command level
2: System level
Usage guidelines
Suppressing the SA bit is mainly for avoiding black hole route. If a router starts or reboots without
keeping the local forwarding table, sending packets to the router might result in a severe packet loss. To
avoid this, you can set the SA bit of the hello packet sent by the GR restarter to 1. Upon receiving such
hello packets, the GR helpers do not advertise the GR restarter through LSP.
Examples
# Suppress the SA bit during Graceful Restart.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] graceful-restart suppress-sa
import-route (IS-IS view)
Use import-route to redistribute routes from another routing protocol or another IS-IS process.
Use undo import-route to disable route redistribution from another routing protocol or another IS-IS
process.
Syntax
import-route protocol [ process-id | all-processes | allow-ibgp ] [ cost cost | cost-type { external |
internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] *
undo import-route protocol [ process-id | all-processes ]
Default
No route redistribution is configured.
Views
IS-IS view
Default command level
2: System level
Parameters
protocol: Redistributes routes from a routing protocol, which can be BGP, direct, IS-IS, OSPF, RIP or static.
process-id: Specifies a process by its ID in the range of 1 to 65535. It is available only when the protocol
is IS-IS, OSPF or RIP.
all-processes: Redistributes routes from all the processes of the specified routing protocol. This keyword
takes effect only when the protocol is rip, ospf, or isis.
allow-ibgp: Allows redistribution of IBGP routes. It is available when the protocol is BGP.
cost: Specifies a cost for redistributed routes.
The range of the cost depends on its style:
• For the styles of narrow, narrow-compatible, and compatible, the cost is in the range of 0 to 63.