VPRN Service Configuration Commands
Page 1066 7750 SR OS Services Guide
Default no auth-keychain
Parameters name — Specifies the name of an existing keychain, up to 32 characters, to use for the specified TCP
session or sessions.
cluster
Syntax cluster cluster-id
no cluster
Context config>service>vprn>bgp
config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description This command configures the cluster ID for a route reflector server.
Route reflectors are used to reduce the number of IBGP sessions required within an AS. Normally, all
BGP speakers within an AS must have a BGP peering with every other BGP speaker in an AS. A
route reflector and its clients form a cluster. Peers that are not part of the cluster are considered to be
non-clients.
When a route reflector receives a route, first it must select the best path from all the paths received. If
the route was received from a non-client peer, then the route reflector sends the route to all clients in
the cluster. If the route came from a client peer, the route reflector sends the route to all non-client
peers and to all client peers except the originator.
For redundancy, a cluster can have multiple route reflectors.
Confederations can also be used to remove the full IBGP mesh requirement within an AS.
The no form of the command deletes the cluster ID and effectively disables the Route Reflection for
the given group.
Default no cluster — No cluster ID is defined.
Parameters cluster-id — The route reflector cluster ID is expressed in dot decimal notation.
Values Any 32 bit number in dot decimal notation. (0.0.0.1 — 255.255.255.255)
connect-retry
Syntax connect-retry seconds
no connect-retry
Context config>service>vprn>bgp
config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description This command configures the BGP connect retry timer value in seconds.
When this timer expires, BGP tries to reconnect to the configured peer. This configuration parameter
can be set at three levels: global level (applies to all peers), peer-group level (applies to all peers in
group) or neighbor level (only applies to specified peer). The most specific value is used.
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