Nokia Network Voyager, Справочное руководство

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6
Configuring Routing
284 Voyager Reference Guide
Note
This feature might cause other protocols to be blocked for prolonged
intervals by a busy peer connection.
The following table displays the path attributes and their definitions:
Path Attribute Definition
AS_PATH Identifies the autonomous systems through which
routing information carried in an UPDATE message has
passed. Components of this list can be AS_SETs or
AS_SEQUENCES.
NEXT_HOP Defines the IP address of the border router that should
be used as the next hop to the destinations listed in the
UPDATE message.
MULTI_EXIT_DISC Discriminates among multiple exit or entry points to the
same neighboring autonomous system. Used only on
external links.
LOCAL_PREF Determines which external route should be taken and is
included in all IBGP UPDATE messages. The assigned
BGP speaker sends this message to BGP speakers
within its own autonomous system but not to
neighboring autonomous systems. Higher values of a
LOCAL_PREF are preferred.
ATOMIC_AGGREGATE Specifies to a BGP speaker that a less specific route
was chosen over a more specific route. The BGP
speaker attaches the ATOMIC_AGGREGATE attribute
to the route when it reproduces it to other BGP
speakers. The BGP speaker that receives this route
cannot remove the ATOMIC_AGGREGATE attribute or
make any NLRI (Network Layer Reachability
Information) of the route more specific. This is used only
for debugging purposes.