Rt updating bgp 0 0 0 0 0
Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Copyright Notice Copyright (C) The Internet Society (2000). Abstract This document defines a new Border Gateway Protocol (BGP) capability termed 'Route Refresh Capability', which would allow the dynamic exchange of route refresh request between BGP speakers and subsequent re-advertisement of the respective Adj-RIB-Out.
One possible application of this capability is to facilitate non-disruptive routing policy changes.
Instead of a route-map like IOS, IOS XR uses a Route Policy Language (RPL) – that is more powerful and easier than IOS.
# show ip bgp summary BGP4 Summary Router ID: 10.10.1.14 Local AS Number: 100 Confederation Identifier: not configured Confederation Peers: Maximum Number of IP ECMP Paths Supported for Load Sharing: 1 Number of Neighbors Configured: 67, UP: 67 Number of Routes Installed: 258088, Uses 22195568 bytes Number of Routes Advertising to All Neighbors:17,035844(3,099146 entries), Uses 192,147052 bytes Number of Attribute Entries Installed: 612223, Uses 55100070 bytes Neighbor Address AS# State Time Rt: Accepted Filtered Sent To Send 10.0.100.2 100 ESTABp 0h28m24s 0 0 258087 0 10.0.101.2 100 ESTAB 0h28m24s 0 0 258087 0 10.2.3.4 200 ADMDN 0h44m56s 0 0 0 2 The maximum number of route paths across which the device can balance traffic to the same destination.
This document proposes an alternative solution that avoids the additional maintenance cost.