Dell PowerConnect B-FCXs Configuration Manual page 1055

PowerConnect#show ip bgp route
Total number of BGP Routes: 5
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED
1
2
3
4
5
The first lookup results in an IBGP route, to network 102.0.0.0/24.
PowerConnect#show ip route 102.0.0.1
Total number of IP routes: 38
Since the route to 102.0.0.1/24 is not an IGP route, the Layer 3 Switch cannot reach the next hop
through IP, and thus cannot use the BGP route. In this case, since recursive next-hop lookups are
enabled, the Layer 3 Switch next performs a lookup for 102.0.0.1 next-hop gateway, 10.0.0.1.
PowerConnect#show ip bgp route 102.0.0.0
Number of BGP Routes matching display condition : 1
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED
1
The next-hop IP address for 102.0.0.1 is not an IGP route, which means the BGP route destination
still cannot be reached through IP. The recursive next-hop lookup feature performs a lookup on
10.0.0.1 next-hop gateway.
PowerConnect#show ip route 10.0.0.1
Total number of IP routes: 38
This lookup results in an IGP route. In fact, this route is a directly-connected route. As a result, the
BGP route destination is now reachable through IGP, which means the BGP route is eligible for
installation in the IP route table. Here is the BGP route in the IP route table.
PowerConnect#show ip route 240.0.0.0/24
Total number of IP routes: 38
PowerConnect B-Series FCX Configuration Guide
53-1002266-01
H:HISTORY I:IBGP L:LOCAL M:MULTIPATH S:SUPPRESSED
Prefix Next Hop
0.0.0.0/0 10.1.0.2
AS_PATH: 65001 4355 701 80
102.0.0.0/24 10.0.0.1
AS_PATH: 65001 4355 1
104.0.0.0/24 10.1.0.2
AS_PATH: 65001 4355 701 1 189
240.0.0.0/24 102.0.0.1
AS_PATH: 65001 4355 3356 7170 1455
250.0.0.0/24 209.157.24.1
AS_PATH: 65001 4355 701
Network Address NetMask
102.0.0.0 255.255.255.0
AS_PATH: 65001 4355 1
H:HISTORY I:IBGP L:LOCAL M:MULTIPATH S:SUPPRESSED
Prefix Next Hop
102.0.0.0/24 10.0.0.1
AS_PATH: 65001 4355 1
Network Address NetMask
10.0.0.0 255.255.255.0
AS_PATH: 65001 4355 1
Network Address NetMask
240.0.0.0 255.255.255.0
AS_PATH: 65001 4355 1
Optional configuration tasks
Metric LocPrf
0 100
1 100
0 100
1 100
1 100
Gateway
10.0.0.1
Metric LocPrf
1 100
Gateway
0.0.0.0
Gateway
10.0.0.1
30
Weight Status
0 BI
0 BI
0 BI
0 BI
0 I
Port Cost Type
1/1 1 B
Weight Status
0 BI
Port Cost Type
1/1 1 D
Port Cost Type
1/1 1 B
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