Cisco Nexus 7000 Series - Page 285

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10-15
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 10 Configuring Basic BGP
Configuring Basic BGP
DETAILED STEPS
Command Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Enters configuration mode.
Step 2
router bgp autonomous-system-number
Example:
switch(config)# router bgp 64496
switch(config-router)#
Enables BGP and assigns the AS number to the local
BGP speaker. The AS number can be a 16-bit integer
or a 32-bit integer in the form of a higher 16-bit
decimal number and a lower 16-bit decimal numbe in
xx.xx format.
Step 3
neighbor { ip-address | ipv6-address }
remote-as as-number
Example:
switch(config-router)# neighbor
209.165.201.1 remote-as 64497
switch(config-router-neighbor)#
Configures the IPv4 or IPv6 address and AS number
for a remote BGP peer. The ip-address format is
x.x.x.x. The ipv6-address format is A:B::C:D.
Step 4
description text
Example:
switch(config-router-neighbor)#
description Peer Router B
switch(config-router-neighbor)#
(Optional) Adds a description for the neighbor. The
description is an alphanumeric string up to 80
characters .
Step 5
timers keepalive-time hold-time
Example:
switch(config-router-neighbor)# timers
30 90
(Optional) Adds the keepalive and hold time BGP
timer values for the neighbor. The range is from 0 to
3600 seconds. The default is 60 seconds for the
keepalive time and 180 seconds for the hold time.
Step 6
shutdown
Example:
switch(config-router-neighbor)# shutdown
(Optional). Administratively shuts down this BGP
neighbor. This command triggers an automatic
notification and session reset for the BGP neighbor
sessions.
Step 7
address-family {ipv4 | ipv6}{unicast |
multicast}
Example:
switch(config-router-neighbor)#
address-family ipv4 unicast
switch(config-router-neighbor-af)#
Enters neighbor address family configuration mode for
the unicast IPv4 address family.
Step 8
show bgp {ipv4 | ipv6}{unicast |
multicast} neighbors
Example:
switch(config-router-neighbor-af)# show
bgp ipv4 unicast neighbors
(Optional) Displays information about BGP peers.
Step 9
copy running-config startup-config
Example:
switch(config-router-neighbor-af) copy
running-config startup-config
(Optional) Saves this configuration change.