Edge-Core ECS4660-28F, Management Manual, Page: 1846 / 2020

C
HAPTER
51
| IP Routing Commands
Border Gateway Protocol (BGPv4)
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C
OMMAND
U
SAGE
◆
This command immediately resets the connection for directly adjacent
external peers if the interface goes down for any reason other than TCP
timeout.
◆
If fast external failover is disabled, the routing process waits until the
default hold timer expires to reset the session.
E
XAMPLE
Console(config-router)#bgp fast-external-failover
Console(config-router)#
bgp log-neighbor-
changes
This command enables logging of neighbor resets (that is, up or down
status changes). Use the no form to disable this feature.
C
OMMAND
M
ODE
Router Configuration
D
EFAULT
S
ETTING
Disabled
C
OMMAND
U
SAGE
◆
This command helps detect network problems by indicating if a
neighbor connection is flapping. A high number of neighbor resets
might indicate unacceptable error rates or high packet loss in the
network.
◆
Log messages for neighbor resets are recorded as level 6 messages in
the system log file which can viewed using the show log ram command.
E
XAMPLE
Console(config-router)#bgp log-neighbor-changes
Console(config-router)#
bgp network
import-check
This command checks for the existence of the next-hop and its accessibility
to an Interior Gateway Protocol. Use the no form to disable this feature.
S
YNTAX
[ no ] bgp network import-check
C
OMMAND
M
ODE
Router Configuration
D
EFAULT
S
ETTING
Disabled