3Com S7906E Command Reference Manual page 1670

Default Level
2: System level
Parameters
extended-community-list-number: Number of the extended community list supported by the RR group,
in the range 1 to 199.
Description
Use the rr-filter command to create an RR reflection policy.
Use the undo rr-filter command to disable the function.
Only IBGP routes whose route target extended community attributes satisfy the matching conditions
are reflected. This provides a way to implement load balancing between RRs.
Examples
# In BGP-VPNv4 subaddress family view, create an RR group and configure it to automatically filter the
incoming VPNv4 route update packets based on the route target extended community attribute.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpnv4
[Sysname-bgp-af-vpnv4] rr-filter 10
# In BGP-L2VPN address family view, create an RR group and configure it to automatically filter the
incoming VPNv4 route update packets based on the route target extended community attribute.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] l2vpn-family
[Sysname-bgp-af-l2vpn] rr-filter 10
sham-link
Syntax
sham-link source-ip-address destination-ip-address [ cost cost | dead dead-interval | hello
hello-interval | retransmit retrans-interval | trans-delay delay | simple [ cipher | plain ] password1 |
{ md5 | hmac-md5 } key-id [ cipher | plain ] password2 ] *
undo sham-link source-ip-address destination-ip-address [ cost | dead | hello | retransmit |
trans-delay | simple | { md5 | hmac-md5 } key-id ] *
View
OSPF area view
Default Level
2: System level
Parameters
source-ip-address: Source IP address for the sham link.
destination-ip-address: Destination IP address for the sham link.
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