06-25-2009 08:02 AM - edited 03-06-2019 06:27 AM
Hello,
How do I enable ip nbar protocol discovery on Cisco 6509 OS version Version 12.2(18)SXF ? would like to do this to get some stats on current traffic running on our network.
I have CEF enabled already but do I need any other commands so I can enable nbar on an interface. At the moment only global command exist for nbar and not interface command.
Switch(config)#ip cef ?
accounting Enable CEF accounting
distributed Distributed Cisco Express Forwarding
event-log CEF event log commands
interface CEF linecard commands
linecard CEF linecard commands
load-sharing Load sharing
nsf Set CEF non-stop forwarding (NSF) characteristics
table Set CEF forwarding table characteristics
traffic-statistics Enable collection of traffic statistics
Global Command (No Interface Command ?) :-
Switch(config)#ip nbar ?
custom Custom PDL (protocol description language) Module
pdlm PDL (protocol description language) Module
port-map Map well-known port of a protocol to a new port
resources Configure memory usage for tracking Stateful sessions
06-25-2009 08:17 AM
You should look into NetFlow instead of NBAR.
HTH,
__
Edison.
06-25-2009 11:11 AM
Most switches don't support NBAR. For the 6500, believe some of the WAN module cards do (e.g. FlexWAN, SIP-200/4000), or there's somewhat of a similar capability(?) if using a sup32-PISA.
06-26-2009 04:23 AM
So 6500 with Sup-720 wont work either ?
What can I use to classify traffic for QOS ?
I thought using nbar would help greatly with minimal cost ?
06-26-2009 05:49 AM
You can use ACLs.
For instance, for match protocol http, you can do the same with:
access-list 101 permit tcp any any eq 80
access-list 101 permit tcp any eq 80 any
class-map NETPRO
match access-group 101
While the 'match protocol' command is available under the 6500 Sup-720 CLI, activating that command will produce sub-par performance as that process will be running in software.
HTH,
__
Edison.
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