Configuring Bgp; Enabling Bgp - Zte ZXR10 5900E Series User Manual

ZXR10 5900E Series User Manual (IPv4 Volume)
St- Command
ep
1
ZXR10(config)#
2
ZXR10(config-router)#
remote-as <number>
3
ZXR10(config-router)#
mask>
Example
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changes. They send route update messages to all BGP neighbors
who will further spread the routing information until it reaches the
whole network.
Routes learned via BGP have associated properties that are used
to determine the best route to a destination when multiple paths
exist to a particular destination. These properties are referred to
as BGP attributes. There are four types of path attributes:
1. Mandatory AttributeIt must appear in the route description.
AS-path
Next hop
Origin
2. Self-Defined Attribute It does not have to appear in the route
description.
Local preference
Atomic aggregate
3. Optional Transitional AttributeIt does not have to be supported
by all BGP implementations. If it is supported, it can be for-
warded to BGP neighbors. If it is not supported by the current
router, it should be forwarded to other BGP routers.
Aggregator
Community
4. Optional Non-Transitional AttributeIt should be deleted by the
routers that do not support it.
Multi-exit-discriminator (MED)

Configuring BGP

Enabling BGP

router bgp <as-number>
neighbor <ip-address>
network <ip-address><net-
R1 is in AS 100 and R2 in AS 200. This is shown in
Function
This starts the BGP process.
This configures BGP
neighbors.
This configures BGP to
advertise a network.
Figure 13.