Net Flow Card Questions

[Anthony Colao]

If I have redundant SUP V and my netflow is on the "stand-by" sup, is it possible to issue ip route-cache flow command.  Here is sh ver and sh mod

EMHS-4510-244.1#sh ver
Cisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I9S-M), Version 12
.2(25)EWA4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Fri 23-Sep-05 13:31 by ssearch
Image text-base: 0x10000000, data-base: 0x114DFF08

ROM: 12.2(20r)EW1
Dagobah Revision 226, Swamp Revision 34

EMHS-4510-244.1 uptime is 4 weeks, 3 days, 2 hours, 34 minutes
Uptime for this control processor is 4 weeks, 3 days, 2 hours, 35 minutes
System returned to ROM by power-on
System image file is "bootflash:"

cisco WS-C4510R (MPC8245) processor (revision 4) with 524288K bytes of memory.
Processor board ID FOX101801F3
MPC8245 CPU at 400Mhz, Supervisor V
Last reset from PowerUp
18 Virtual Ethernet interfaces
124 Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

EMHS-4510-244.1#

EMHS-4510-244.1# sh mod
Chassis Type : WS-C4510R

Power consumed by backplane : 40 Watts

Mod Ports Card Type                              Model              Serial No.
---+-----+--------------------------------------+------------------+-----------
1     2  Supervisor V 1000BaseX (GBIC)          WS-X4516           JAE10275WT1
2     2  Supervisor V 1000BaseX (GBIC)          WS-X4516           JAE10275WWQ
3     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE1026583J
4     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE10265825
5     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE102655LE
6    48  10/100/1000BaseT (RJ45)                WS-X4548-GB-RJ45   JAE10202ERW
7    48  10/100/1000BaseT (RJ45)                WS-X4548-GB-RJ45   JAE10244DA1
8     6  1000BaseX (GBIC)                       WS-X4306-GB        JAE1123KT0N

M MAC addresses                    Hw  Fw           Sw               Status
--+--------------------------------+---+------------+----------------+---------
1 0018.1955.f480 to 0018.1955.f481 4.0 12.2(20r)EW1 12.2(25)EWA4,    Ok
2 0018.1955.f482 to 0018.1955.f483 4.0 12.2(20r)EW1 12.2(25)EWA4     Ok
3 0016.9de2.bf0e to 0016.9de2.bf13 4.1                               Ok
4 0016.9de2.bf44 to 0016.9de2.bf49 4.1                               Ok
5 0013.c323.4534 to 0013.c323.4539 4.1                               Ok
6 0017.e0da.fbf0 to 0017.e0da.fc1f 2.2                               Ok
7 0018.18a9.fb20 to 0018.18a9.fb4f 2.2                               Ok
8 000e.83a1.c590 to 000e.83a1.c595 4.3                               Ok

Mod  Redundancy role     Redundancy mode     Redundancy status
----+-------------------+-------------------+-------------------
1   Standby Supervisor  SSO                 Standby hot
2   Active Supervisor   SSO                 Active

Mod  Submodule               Model             Serial No.   Hw   Status
----+-----------------------+-----------------+------------+----+---------
1   Netflow Services Card   WS-F4531          JAE1229PDFO  2.2  Ok

System Failures:
----------------
Power Supply:   bad/off (see 'show power')

EMHS-4510-244.1#

[Edison Ortiz]

You should be able to type the command but I don't think it will show any flows as the active sup (the one processing your packets) doesn't have the netflow card. Do a force switchover if you want to use netflow or just purchase a card for the active sup.

[Anthony Colao]

Hi Edison,

Firstly, I can not type the command.  I was told by another source that this is because we don't have a netflow card on the redundant (and ACTIVE) sup engine.  Can you verify that this is true?

Additionally, in performing a force switch over, will we drop packets? Does this reload the Sup?  Where is there a good reference of force switch over?  Thanks in advance.....

[Edison Ortiz]

Firstly, I can not type the command.  I was told by another source that 
this is because we don't have a netflow card on the redundant (and 
ACTIVE) sup engine.  Can you verify that this is true? 

I don't have the hardware to verify this but I'm pretty sure if the brain of the switch (the active sup) has the feature card, the command should be available.

I highly recommend having the feature card on both Sups, in case the active fails - the NetFlow related commands will be invalid on the redundant Sup.

Additionally, in performing a force switch over, will we drop packets? 
Does this reload the Sup?  Where is there a good reference of force 
switch over?  Thanks in advance.....

Please refer to the documentation:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/RPR.html#wp1130637

While packets shouldn't be dropped during the switchover, I recommend doing so during a maintenance window

[rprudent]

Hi,

I do beleive that the recommended NetFlow software requirements for the 4510R sup V is IOS 12.2(25)SG or later.  Each sup will also need the NetFlow cards for stateful switch over.