Dell Force10 S4810P Configuration Manual page 209

Figure 9-23. Command example: show ip bgp peer-group
FTOS#sh ip bgp peer-group
Peer-group test
Fall-over enabled
BGP version 4
Minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
BGP neighbor is test
Number of peers in this group 1
Peer-group members (* - outbound optimized):
100.100.100.100*
FTOS#
router bgp 65517
neighbor test peer-group
neighbor test fall-over
neighbor test no shutdown
neighbor 100.100.100.100 remote-as 65517
neighbor 100.100.100.100 fall-over
neighbor 100.100.100.100 update-source Loopback 0
neighbor 100.100.100.100 no shutdown
FTOS#
Configure passive peering
When you enable a peer-group, the software sends an OPEN message to initiate a TCP connection. If you
enable passive peering for the peer group, the software does not send an OPEN message, but it will
respond to an OPEN message.
When a BGP neighbor connection with authentication configured is rejected by a passive peer-group,
FTOS does not allow another passive peer-group on the same subnet to connect with the BGP neighbor . To
work around this, change the BGP configuration or change the order of the peer group configuration.
You can constrain the number of passive sessions accepted by the neighbor. The
to set the total number of sessions the neighbor will accept, between 2 and 265. The default is 256 sessions.
Fast Fall-Over Indicator
keyword allows you
limit
Border Gateway Protocol | 209