Configuring Bgp Route Attributes - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Example
# Run the display bgp peer command to view the BGP connection status.
<HUAWEI> display bgp peer
BGP local router ID : 2.2.2.2
Local AS number : 65009
Total number of peers : 3
Peer
9.1.1.2
9.1.3.2
200.1.1.2
# Run the display bgp routing-table 60.0.0.35 command to view a specified BGP route.
<HUAWEI> display bgp routing-table 60.0.0.35
BGP local router ID : 30.0.0.35
Local AS number : 400
Paths:
BGP routing table entry information of 60.0.0.35/32:
Network route.
From: 0.0.0.0 (0.0.0.0)
Route Duration: 3d04h00m12s
Direct Out-interface: InLoopBack0
Original nexthop: 127.0.0.1
Qos information : 0x0
AS-path Nil, origin igp, MED 0, pref-val 0, valid, local, best, select, pre 0
Not advertised to any peer yet

8.4 Configuring BGP Route Attributes

BGP has many route attributes. Configuring route attributes can change route selection results.
8.4.1 Before You Start
Before configuring BGP route attributes, familiarize yourself with the usage scenario, complete
the pre-configuration tasks, and obtain the data required for the configuration.
Applicable Environment
BGP has many route attributes. You can change route selection results by configuring attributes
for routes. Route attributes are listed as follows:
l
l
l
l
Issue 02 (2014-09-30)
V AS
4 65009
4 65009
4 65008
1 available, 1 best, 1 select
BGP preference
Setting the BGP preference can affect route selection between BGP routes and other routing
protocols' routes.
Preferred values
After preferred values are set for BGP routes, the route with the greatest value is preferred
when multiple routes to the same destination exist in the BGP routing table.
Local_Pref
The Local_Pref attribute has the same function as the preferred value of a route. If both of
them are configured for a BGP route, the preferred value takes precedence over the
Local_Pref attribute.
Multi_Exit Discriminator (MED)
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Peers in established state : 3
MsgRcvd MsgSent OutQ
49 62
56 56
49 65
8 BGP Configuration
Up/Down State PrefRcv
0 00:44:58 Established
0 00:40:54 Established
0 00:44:03 Established
0
0
1
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