Information Technology Reference
In-Depth Information
Locally originated route.
5
Shortest AS Path.
6
Lowest origin type (IGP < EGP < Incomplete).
7
Lowest MED (metric).
8
External path over Internal path.
9
Nearest eBGP neighbor (best IGP path to eBGP neighbor).
10
Path with Lowest RID.
11
BGP Attributes
Table 9-2
Attribute
Class
Description
Next-Hop
Well-known, mandatory
IP address that reaches the destination
Weight
n/a
Configured on the router to assign a preference of
routes from different sources (not an RFC attribute)
Local Preference
Well-known, discretionary
Indicates a path for exiting the AS
Origin
Well-known, mandatory
I (IGP), e (EGP), ? (incomplete)
AS Path
Well-known, mandatory
Number of autonomous systems to reach the
destination, list of AS numbers
MED (metric)
Optional, transitive
Tells the eBGP peers the preferred path into the AS
Community
Optional, transitive
Groups networks for policy assignment
Search WWH ::
Custom Search