Summary Automatic - H3C MSR 20-20 Command Reference Manual

Examples

summary automatic

Syntax
View
Parameters
Description
Examples
You can specify a router ID manually. If not, the system selects an IP address as the
router ID. The selection sequence is the highest IP address among loopback
interface addresses; if not available, then the highest IP address of interfaces. It is
recommended to specify a loopback interface address as the router ID to enhance
network reliability.
Only when the interface with the selected Router ID or the manual Router ID is
deleted will the system select another ID for the router.
# Specifies the Router ID as 10.18.4.221.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] router-id 10.18.4.221
summary automatic
undo summary automatic
BGP view/BGP-VPN instance view
None
Use the
summary automatic
redistributed subnets.
Use the
undo summary automatic
summarization.
By default, automatic summarization is disabled.
Note that:
Neither the default route nor the routes imported using the network
■
command can be summarized automatically.
With this feature enabled, BGP limits the subnets redistribution from IGP to
■
reduce the size of routing table.
# In BGP view, enable automatic summarization.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] summary automatic
# In BGP-VPN instance view, enable automatic summarization (the VPN has been
created).
<Sysname> system-view
[Sysname] bgp 100
command to enable automatic summarization for
command to disable automatic
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