Manually Checking Crc Errors On The Ml-Series Card - Cisco ONS 15454 SDH Configuration Manual

Chapter 21 Configuring RMON
Table 21-1
ML100T-12
FastEthernet
Interfaces
FE 7 = Port 7
FE 8 = Port 8
FE 9 = Port 9
FE 10 = Port
10
FE 11 = Port 11
The slot and port are combined to form the ifIndex using the following formula:
ifIndex = (slot * 10000h) + (port)
10000h is the hexadecimal equivalent number of 65536. The resulting ifIndex is a meaningful two-part
number in hexadecimal, but seems confusing and arbitrary in decimal. For example, ifIndex E0002h is
Slot 14, Port 2. This same number in decimal notation is 917506. The rmon alarm command requires
the ifindex number in decimal form.
As an additional reference for calculating the correct ifindex value to use with the rmon alarm
command,
added to the slot base number to quickly determine the correct ifIndex number.
Table 21-2
Slot Number for the
ML-Series Card
1
2
3
4
5
6
12
13
14
15
16
17

Manually Checking CRC Errors on the ML-Series Card

Users can also check the current count of ML-Series card CRC errors on an interface by using the
show interface command. The example shows six total input errors, which are all CRC errors, in the last
line of the output.
Port Numbers for the Interfaces of ML-Series Cards
ML100T-12 POS
Interfaces
Table 21-1 lists the base ifindex number for Slots 1 to 17. The desired port number can be
Port Numbers for the Interfaces of ML-Series Cards
Base ifIndex Number in
Hexidecimal Format
10000h
20000h
30000h
40000h
50000h
60000h
C0000h
D0000h
E0000h
F0000h
100000h
110000h
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Manually Checking CRC Errors on the ML-Series Card
ML100X-8
FastEthernet ML100X-8 POS
Interfaces Interfaces
FE 7 = Port 7
Base ifIndex Number in
Decimal Format
65536
131072
196608
262144
327680
393216
786432
851968
917504
983040
1048576
1114112
ML1000-2
Gigabit
Ethernet ML1000-2 POS
Interfaces Interfaces
21-19