Packets that CEF cannot handle:
- IP Header Options
- Expiring TTL
- Tunnel int
- Exceed MTU
- IGMP Redirect
Load Balancing Options
- Per-Packets
- Per-Dessession (Session)
IOU1(config)#ip cef load-sharing algorithm universal
CLIENT#traceroute 8.8.8.8 probe 10
Type escape sequence to abort.
Tracing the route to 8.8.8.8
VRF info: (vrf in name/id, vrf out name/id)
1 1.1.1.1 5 msec 4 msec 1 msec 5 msec 4 msec 9 msec 5 msec 0 msec 2 msec 1 msec
2 10.12.0.2 9 msec 10 msec 9 msec 9 msec 9 msec 9 msec 9 msec 30 msec 9 msec 9 msec
3 10.24.0.4 18 msec 17 msec 23 msec 14 msec 17 msec 18 msec 18 msec 17 msec 17 msec 13 msec
4 10.48.0.8 27 msec 27 msec 26 msec 26 msec 25 msec 26 msec 25 msec 28 msec 26 msec 25 msec
IOU1(config)#do show ip cef 8.8.8.8 255.255.255.255 internal
8.8.8.8/32, epoch 0, RIB[I], refcount 5, per-destination sharing
sources: RIB
feature space:
IPRM: 0x00028000
ifnums:
Serial2/0(11)
Serial2/1(12)
path B1F3A7D8, path list B309782C, share 1/1, type attached nexthop, for IPv4
nexthop 10.12.0.2 Serial2/0, adjacency IP adj out of Serial2/0 B4F0C268
path B1F3A848, path list B309782C, share 0/1, type attached nexthop, for IPv4
nexthop 10.13.0.3 Serial2/1, adjacency IP adj out of Serial2/1 B4F0C138
output chain:
loadinfo B22C790C, per-session, 2 choices, flags 0083, 5 locks
flags: Per-session, for-rx-IPv4, 2buckets
2 hash buckets
< 0 > IP adj out of Serial2/0 B4F0C268
< 1 > IP adj out of Serial2/1 B4F0C138
Subblocks:
None
IOU1(config)#ip cef load-sharing algorithm include-ports destination
CLIENT#traceroute 8.8.8.8 probe 10
Type escape sequence to abort.
Tracing the route to 8.8.8.8
VRF info: (vrf in name/id, vrf out name/id)
1 1.1.1.1 5 msec 5 msec 4 msec 5 msec 5 msec 5 msec 4 msec 4 msec 4 msec 6 msec
2 10.13.0.3 6 msec
10.12.0.2 9 msec 8 msec 9 msec 8 msec 8 msec
10.13.0.3 9 msec
10.12.0.2 8 msec 8 msec 11 msec
3 10.36.0.6 17 msec
10.24.0.4 17 msec 18 msec 17 msec 17 msec
10.36.0.6 17 msec 14 msec
10.24.0.4 18 msec 18 msec 17 msec
4 10.48.0.8 27 msec 26 msec
10.68.0.8 27 msec
10.48.0.8 25 msec 26 msec 27 msec
10.68.0.8 26 msec
10.48.0.8 25 msec 26 msec 26 msec
IOU1#show rib client
Client name Handle WalkQ WalkQ by Owner
IP Static Route 1 0 0
IP Static Default Ne 2 0 0
App Route 3 0 0