Monitoring IPX on Cisco Routers
435
C 10B(ARPA), Fa0/0.10
C 10C(SNAP), Fa0/0.100
R 20 [07/01] via 10.0000.0c8d.3a7b, 16s, Fa0/0
R 30A[07/02] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 30B[07/02] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 30C[07/02] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 30D[07/02] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 40 [07/02] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 50A[13/03] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 50B[13/03] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 50C[13/03] via 10.0000.0c8d.3a7c, 17s, Fa0/0
R 50D[13/03] via 10.0000.0c8d.3a7c, 17s, Fa0/0
2621A#
Notice that the routing table has 14 IPX routes now instead of the five we
had earlier. I did not add any new physical networks, but the new networks
are the new encapsulations you added for each network. The three LANs
each advertise four IPX networks every 60 seconds out of each active inter-
face. Imagine if you had 20 routers and you added all the frame types!
There is one more consideration when adding multiple frame types on a
LAN: the SAP activity. Service Advertisement Protocol (SAP) is broadcast
over every active interface every 60 seconds. If you have multiple frame types
configured on a LAN, the broadcast is sent out in every frame type possible.
If you only send one SAP packet, which is unlikely, you would send that
same packet out four times. If you have multiple SAP packets, you send each
packet out four times every 60 seconds.
Monitoring IPX on Cisco Routers
O
nce you have IPX configured and running, there are several ways to
verify and track that your router is communicating correctly. The following
commands will be covered:
show ipx servers
show ipx route
show ipx traffic
Copyright ©2002 SYBEX, Inc., Alameda, CA
www.sybex.com