"bgp Source" Command

[mjae]

Hi all,

is anyone familiar with the "bgp source" command in interface config mode? I can't see anything on it at Cisco.com. I've come across it in the Cisco Press book IP QoS:

interface Hssi 0/0/1

ip address 217.217.217.1 255.255.255.252

bgp source ip-prec-map

router bgp 10

table-map tasman

neighbour 217.217.217.2 remote-as 2345

route-map tasman permit 10

match ip address 1

set ip precedence 5

route-maptasman permit 20

set ip precedence 4

access-group 1 permit 215.215.215.0 0.0.0.255

On our router I see the following in the interactive help:

router-0(config-if)#bgp ?

accounting bgp based policy accounting of traffic

destination use destination IP address for route lookup

source use source IP address for route lookup

router-0(config-if)#bgp source ?

ip-prec-map map ip precedence bits

ip-qos-map set qos-group

As far as I can see, it takes anything that comes on that interface and assigns it either an IP Precedence value of 4 or 5 when routing the packet onwards. But is anyone has more information about this command that would be great. I've checked

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122sup/122csum/csfindxa.htm

but can't see the command.

TIA,

Matthew

[ruwhite · Accepted solution]

Is it actually bgp-policy source, as shown here:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1820/products_feature_guide09186a00800f4898.html#xtocid1734616

Sometimes in books they forget to put the entire command in.

:-)

Russ.W

[mjae]

Thx for that Ross,

it looks like there are two versions of the command in the IOS. The correct version is what you mentioned, but it looks like the author used a different version of the same command.

Matthew.