Specifications

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Catalyst 6500 Series Switch and Cisco 7600 Series Router Network Analysis Module Installation and Configuration Note
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Chapter 5 Troubleshooting the Network Analysis Module
Local Interfaces in the NAM ifTable
The WS-SVC-NAM-2 appears in the supervisor engine CLI (in the Catalyst operating system) and
ifTable as eight ports. Ports 1, 3, 4, 5, and 6 are unused. Port 2 is the management port (the same as on
WS-SVC-NAM-1). Ports 7 and 8 are both data ports and can be SPAN targets. The supervisor engine
CLI (in the Cisco IOS software) parses the ports to (“analysis module . . .”). On the NAM's ifTable, the
interfaces are as follows:
• ifIndex.1: Is designated the management port.
• ifIndex.2: Represents the traffic from both data ports (also known as “All SPAN”).
• ifIndex.3: Represents the traffic from the first data port (named “data port 1”)
• fIndex.4: Represents the traffic from the second data port (named “data port 2”)
Note For the WS-SVC-NAM-1 and WS-SVC-NAM-2, the data ports are IEEE 802.1Q trunk ports. Packets
are received with an 802.1Q header (except for packets with the ports native VLAN ID), affecting offsets
(for example, the filters on the IP headers) in the packets.
Table 5-5 lists the local interface designations for the NAM.
Table 5-5 NAM Local Interface Designations
WS-X6380-NAM WS-SVC-NAM-1 WS-SVC-NAM-2
SNMP OID cisco.5.1. 3. 3.3.2.223 cisco.5.1. 3. 3.3.2.914 cisco.5.1. 3. 3.3.2.291
Supervisor engine
number of ports
238
Supervisor engine
management port
222
Supervisor engine
data ports
137,8
NAM management
port
ifIndex.2 ifIndex.1 ifIndex.1
NAM data port ifIndex.1 ifIndex.2 ifIndex.2, ifIndex.3, ifIndex.4