Administrator Guide

neighbor subnet
Enable passive peering so that the members of the peer group are dynamic.
C9000 Series
Syntax
neighbor peer-group-name subnet subnet-number mask
To remove passive peering, use the no neighbor peer-group-name subnet subnet-number
mask command.
Parameters
subnet-number Enter a subnet number in dotted decimal format (A.B.C.D.) as the allowable range
of addresses included in the peer group. To allow all addresses, enter 0::0/0.
mask Enter a prefix mask in / prefix-length format (/x).
Defaults Not configured.
Command Modes ROUTER BGP
Command
History
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
neighbor shutdown
Disable a BGP neighbor or peer group.
C9000 Series
Syntax
neighbor {ipv6-address | peer-group-name} shutdown
To enable a disabled neighbor or peer group, use the no neighbor {ipv6-address | peer-
group-name} shutdown command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields of zeros.
peer-group-name Enter the name of the peer group to disable or enable all routers within the peer
group.
Defaults Enabled (that is, BGP neighbors and peer groups are disabled.)
Command Modes ROUTER BGP
Command
History
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
Usage
Information
Peers that are enabled within a peer group are disabled when their peer group is disabled.
Border Gateway Protocol 477