Cisco CRS-1 - Carrier Routing System Router Troubleshooting Manual page 259

Chapter 13 Troubleshooting Load Balancing
Enter bundle type IP V4 (1) or IP V6 (2): 1
Enter source IP V4 address: 192.168.254.1
Enter destination IP V4 address: 10.1.2.1
Ingress interface --
- physical interface format: [ POS | GigabitEthernet | TenGigE ]R/S/I/P
- bundle interface format:
Enter ingress interface: GigabitEthernet0/6/5/4
Enter L4 protocol (TCP,UDP,SCTP,L2TPV3,NONE): TCP
Enter src port: 5500
Enter destination port: 23
Compute destination address set for all members? [y/n]: y
Enter subnet prefix for destination address set: 10.0.0.0
Enter bundle IP V4 address [192.168.254.1]: 10.12.48.1
S/D pair 192.168.254.1:5500/10.1.2.1:23 -- Link hashed to is GigabitEthernet0/6/5/7
Destination address set for subnet 10.0.0.0:
S/D pair 192.168.254.1:5500/10.0.0.2:23 hashes to link GigabitEthernet0/6/5/5
S/D pair 192.168.254.1:5500/10.0.0.1:23 hashes to link GigabitEthernet0/6/5/6
S/D pair 192.168.254.1:5500/10.0.0.4:23 hashes to link GigabitEthernet0/6/5/7
This shows that an ingress flow from 192.168.254.2:5500 on interface GigabitEthernet0/6/5/4 to
destination 10.1.2.1:23 would use egress interface GigabitEthernet0/6/5/7. You can verify that this
occurs by viewing the traffic for each of the bundle links, as shown in the following excerpts from show
interfaces:
RP/0/RP0/CPU0:RouterB# show interface Gi0/6/5/5
Tue Oct 28 04:01:57.568 PST DST
GigabitEthernet0/6/5/5 is up, line protocol is up
...
RP/0/RP0/CPU0:RouterB# show interface Gi0/6/5/6
Tue Oct 28 04:02:01.254 PST DST
GigabitEthernet0/6/5/6 is up, line protocol is up
...
RP/0/RP0/CPU0:RouterB# show interface Gi0/6/5/7
Tue Oct 28 04:02:04.704 PST DST
GigabitEthernet0/6/5/7 is up, line protocol is up
...
This verifies that the flow to port 23 is using GigabitEthernet0/6/5/7, as expected.
OL-21483-02
1 packets output, 94 bytes, 0 total output drops
Output 0 broadcast packets, 1 multicast packets
0 output errors, 0 underruns, 0 applique, 0 resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
0 packets output, 0 bytes, 0 total output drops
Output 0 broadcast packets, 0 multicast packets
0 output errors, 0 underruns, 0 applique, 0 resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
18190 packets output, 982260 bytes, 0 total output drops
Output 0 broadcast packets, 0 multicast packets
0 output errors, 0 underruns, 0 applique, 0 resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Configuration Examples for Troubleshooting Load Balancing
[ Bundle-Ether | Bundle-POS ]bundle-id
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
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