Bgp Configuration Guideline; Ers 8000 - Converting From Cli To Acli; Configuration Guidelines - Avaya 8000 Technical Configuration Manual

2.1 BGP Configuration Guideline

ERS 8000 – Converting from CLI to ACLI
2.1.1
As the ERS 8000 supports CLI and ACLI, it is highly recommended to use ACLI as all other switches from
Avaya only support ACLI. If you are presently using CLI, you can convert to ACLI using the following
configuration.
ERS8800-1:5# copy /flash/config.cfg /flash/backup.cfg
ERS8800-1:5# save config file /flash/config_acli.cfg backup /flash/config.cfg mode
acli
ERS8800-1:5# config boot flags acli true
ERS8800-1:5 config boot choice primary config-file /flash/config_acli.cfg
ERS8800-1:5# save boot
ERS8800-1:5# boot -y
2.1.2

Configuration Guidelines

When configuring BGP parameters on the Avaya switch, at a minimum it must be configured with the
following parameters

Router ID

Local AS Number

Enable BGP Globally

BGP Neighbor Peer Session: remote IP addresses

BGP Neighbor Remote Peer AS

Enable BGP peer
In addition, BGP Policies can be added to the BGP peer configuration to influence route decisions as we
will demonstrate later on in the document.
The BGP Router ID by default is automatically derived from the OSPF Router ID. It is

recommended to configure a circuitless IP address (CLIP) and to use this address as
the OSPF Router ID. The CLIP address can also be referred to as a loopback address.
It should be noted that once BGP is configured, some parameter changes may require

having either the BGP Global state or neighboring admin-state to be disabled/enabled.
The CLI prompt will notify you if this is the case.
The BGP policies are dynamically modified. On the global level, the BGP redistribution has an apply
command that causes the policy to be applied at that time. The BGP neighbor peer has a CLI command
named 'restart soft-reconfiguration <in> <out>' that allows policies to be applied without bringing down the
peer.
The following are some examples of these commands:
To enable/disable BGP globally, enter:
router bgp <as> enable
no router bgp enable
January 2016
Avaya Inc. – External Distribution
avaya.com
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