Re: Undocumented BGP Neighbor command

Up<space>? tells IOS to display the available subcommands that come
after the command starting with up. If there is more than one command
starting with up then typing up<space>? leads to this display: %
Ambiguous command: "up". In this particular case there is only one
command that starts with up and that is update-source. To get IOS to
display a list of commands starting with up type up? i.e do not add
spaces.

On 3/3/10, tosco12_at_yahoo.co.uk <tosco12_at_yahoo.co.uk> wrote:
> Hello Guys,
> i was doing a bgp config this morning and i stumbled by accident on the
> following un-documented bgp neighbor command. Does anyone know what exactly
> it
> does and in what scenario can one apply it?
> i am using dynamips on a 3640 router running adv-ent IOS Version 12.4(23)
> here is the output:
>
> R4(config-router)#neighbor 22.22.22.22 up ?
> Async Async interface
> BVI Bridge-Group Virtual Interface
> CDMA-Ix CDMA Ix interface
> CTunnel CTunnel interface
> Dialer Dialer interface
> FastEthernet FastEthernet IEEE 802.3
> Lex Lex interface
> Loopback Loopback interface
> MFR Multilink Frame Relay bundle interface
> Multilink Multilink-group interface
> Null Null interface
> Port-channel Ethernet Channel of interfaces
> Tunnel Tunnel interface
> Vif PGM Multicast Host interface
> Virtual-PPP Virtual PPP interface
> Virtual-Template Virtual Template interface
> Virtual-TokenRing Virtual TokenRing
>
>
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Received on Wed Mar 03 2010 - 16:29:56 ART