
Configuring IP Services
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Overriding the Local AS Number
By default, a BGP speaker that issues an open message to initiate a peer-to-peer
session uses the AS number that you set with the Local AS parameter.
You can use Site Manager to include a different AS number (overriding the
default) or use the AS number you specified in the Local AS parameter.
Specifying a Maximum Update Size
By default, a BGP speaker sends updates with a maximum size of 800 bytes.
You can use Site Manager to specify a maximum update size (overriding the
default).
Note that, if the update message that is used to advertise a single route is larger
than the configured message size, the actual message size can exceed the
configured value.
Setting the Route Echo Switch
The peer route echo switch controls the way the router echoes a BGP route that is
selected for forwarding. (Echoing in this case means advertising the route back to
the peer from which it was received.)
By default, the router advertises the route back as reachable and includes the local
AS.
You can use Site Manager to configure BGP to echo the route as
UNREACHABLE/withdrawn.
Site Manager: Local AS to Advertise to Peer parameter: page A-10
Site Manager: Peer Max Update Size parameter: page A-11
Site Manager: Peer Route Echo Switch parameter: page A-11
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