Bgp Always-Compare-Med - Dell MXL 10GbE Reference Manual

Switch i/o module
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Usage
At least one of the routes included in the aggregate address must be in the BGP
Information
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 using the network command, that route still appears in the
routing table if you configure the summary-only parameter 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

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, use the no bgp always-compare-med
command.
Defaults
Disabled (that is, the software only compares MEDs from neighbors within the
same AS).
Command
ROUTER BGP
Modes
Command
Version 9.2(0.0)
History
Usage
Any update without a MED attribute is the least preferred route.
Information
If you enable this command, use the capture bgp-pdu max-buffer-size *
command to recompute the best path.
IPv6 Border Gateway Protocol (IPv6 BGP)
Introduced on the MXL 10/40GbE Switch IO Module.
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