Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Problem : redundance MSFC2

our config : CAt OS= 8.1 / IOS MSFC =12.1.20

2 cards sup2/MSFC2 with SRM enable

IP and IPX

our problem : at switch start, sup-module1 shows OK, sup-module2 on standby, but on MSFC-module1 VLAN1 is up but doesn't work.

shut/noshut on VLAN 1 is necessary.

Why?

12 REPLIES
New Member

Re: Problem : redundance MSFC2

to better get an idea of what is going on, gonna have to get some more info.. Are other vlans working? are you using vlan 1 for management purposes? or ?? The second msfc really doesnt seem to have any play here, cause it has no bearing on anything unless the primary fails.

Thinking about this....

New Member

Re: Problem : redundance MSFC2

Yes other Vlans working, Vlan 1 is the vlan of management.

the second MSFC is only for redundance.

New Member

Re: Problem : redundance MSFC2

This is quite bizarre indeed. Having the configs would help alot for me to figure this out, cause in my head this doesnt sound right. Simple solution being, dont ever power down switch.

(0_o)

New Member

Re: Problem : redundance MSFC2

Giving this some more thought, crucial question here, are you using STP? Wondering if you are getting L2 loops.

Still thinking about this..

(0_o)

New Member

Re: Problem : redundance MSFC2

1.Regarding second SUP engine not coming on line, Pls check if the CAT OS on both SUP engines is same.

2.Regarding VLAN 1 not working, wether you are running HSRP between primary MSFC and secondary MSFC for VLAN 1 ?

New Member

Re: Problem : redundance MSFC2

the second sup is not online, the cat oS on both SUP is same.

No hsrp,

the MSFCon slot 2 boot on sup-slot0: not bootflash, little space on flash(16 Mb)

New Member

Re: Problem : redundance MSFC2

Not sure what you mean by Vlan 1 intf is up and not working. Do you mean that line protocol is up but not pingable by a device on the same vlan? Some things to check.

- Make sure that SRM is fully sync'd up with command, show redundancy, from MSFC

- See is the sup sees the MSFC's mac-address with commands, show mls cef mac and show cam system from the sup

- Check the startup config on the MSFC with the command, show start

New Member

Re: Problem : redundance MSFC2

Int vlan 1 is up and not working and other device on same vlan not pingable.

int vlan 1 working after shut-noshut command.

New Member

Re: Problem : redundance MSFC2

Can you check the same with single Sup engine,( physically remove the redundant sup engine from slot 2)

If still problem is there, Swap the sup engines and check.(with only one card)

New Member

Re: Problem : redundance MSFC2

If you have dual sup/msfc in the same chassis, both msfc's have to be configured identical other than the ip address assigned to the interface. Do you have vlan 1 configured with an ip in up/up state on both msfc?

You may also want to span port 15/1 to see if the ping ever makes it to the msfc.

Re: Problem : redundance MSFC2

Ok, if I'm not wrong, this is a "bad interaction" between MSFC IOS 12.1.19E1 (or more specifically that bootloader) and older CatOS's. The actual fix is to upgrade your CatOS to a newer version.

Check out bug CSCeb02380 for more details.

New Member

Re: Problem : redundance MSFC2

My MSFC is IOS 12.1.20 ( same Bootldr) and Cat OS is 8.1.3

I will do test next week, the catalyst is going to product.

sorry for my english,

thanks

173
Views
0
Helpful
12
Replies
CreatePlease to create content