Dell Force10 S4820T FTOS Command Reference Guide - Page 797

Defaults Command Modes Command History Usage Information attribute-map map-name summary-only suppress-map map-name (OPTIONAL) Enter the keywords attribute-map followed by the name of a configured route map to modify attributes of the aggregate, excluding AS_PATH and NEXT_HOP attributes. (OPTIONAL) Enter the keyword summary-only to advertise only the aggregate address. Specific routes will not be advertised. (OPTIONAL) Enter the keywords suppress-map followed by the name of a configured route map to identify which more-specific routes in the aggregate are suppressed. Not configured. CONFIGURATION-ROUTER-BGPV6-ADDRESS FAMILY Version 8.3.19.1 Version 8.4.2.1 Version 8.2.1.0 Version 7.4.1.0 Introduced on S4820T Introduced on C-Series and S4810 Introduced on E-Series ExaScale Introduced on E-Series TeraScale At least one of the routes included in the aggregate address must be in the BGP routing table for the configured aggregate to become active. Do not add the as-set parameter to the aggregate, if routes within the aggregate are constantly changing as the aggregate will flap to keep track of the changes in the AS_PATH. In route maps used in the suppress-map parameter, routes meeting the deny clause are not suppress; in other words, they are allowed. The opposite is true: routes meeting the permit clause are suppressed. If the route is injected via the network command, that route will still appear in the routing table if the summary-only parameter is configured in the aggregate-address command. The summary-only parameter suppresses all advertisements. If you want to suppress advertisements to only specific neighbors, use the neighbor distribute-list command. In the show ip bgp ipv6 unicast command, aggregates contain an 'a' in the first column and routes suppressed by the aggregate contain an 's' in the first column. bgp always-compare-med c e Allows you to enable comparison of the MULTI_EXIT_DISC (MED) attributes in the paths from different external ASs. Syntax bgp always-compare-med To disable comparison of MED, enter no bgp always-compare-med. IPv6 Border Gateway Protocol (IPv6 BGP) | 797