table-map

Maps external entry attributes into the BGP routing table, ensuring that those attributes are preserved after being redistributed into OSPF.
Syntax
table-map string
no table-map string
Parameters
string
Specifies a route map to be whose attributes are to be preserved. Range is from 1 through 63 ASCII characters.
Modes

BGP configuration mode

BGP address-family IPv6 unicast configuration mode

BGP address-family IPv4 unicast VRF configuration mode

BGP address-family IPv6 unicast VRF configuration mode

Usage Guidelines

When this command is entered in BGP global configuration mode, it applies only to the IPv4 address family. Use this command in BGP address-family IPv6 unicast configuration mode for BGP4+ configurations.

Use this command only to set the tag values. Normally, a route map is applied on routes (and therefore the routes are updated) before it is stored in the BGP routing table. Use the table-map command to begin the update before the routes are stored in the IP routing table.

Configurations made by this command apply to all peers.

Route maps that contain set statements change values in routes when the routes are accepted by the route map. For inbound route maps (route maps that filter routes received from neighbors), the routes are changed before they enter the BGP4 routing table. For tag values, if you do not want the value to change until a route enters the IP routing table, you can use a table map to change the value. A table map is a route map that you have associated with the IP routing table. The device applies the set statements for tag values in the table map to routes before adding them to the routing table. To configure a table map, you first configure the route map, then identify it as a table map. The table map does not require separate configuration. You can have only one table map.

Note: Use table maps only for setting the tag value. Do not use table maps to set other attributes. To set other route attributes, use route maps or filters. To create a route map and identify it as a table map, enter commands such those shown in the first of the following examples. These commands create a route map that uses an address filter. For routes that match the IP prefix list filter, the route map changes the tag value to 100 and is then considered as a table map. This route map is applied only to routes that the device places in the IP routing table. The route map is not applied to all routes. The first of the following examples below assumes that IP prefix list p11 has already been configured.

The no form of the command removes the table map.

Examples

The following example illustrates the execution of the table-map command. 

device# configure terminal
device(config)# route-map tag_ip permit 1
device(config-route-map tag_ip)# match ip address prefix-list p11
device(config-route-map tag_ip)# set tag 100
device(config-route-map tag_ip)# exit
device(config)# router bgp
device(config-bgp-router)# table-map tag_ip

The following example removes a table map in the IPv6 address family. 

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# no table-map tag_ip
Parent topic: Commands Si - Z