04-25-2011 10:04 AM
We have a director switch with four blade chassis switches. The ISLs from the director to the chassis are two ports trunked. The chassis switch has 8G sfp, however the director has only 4G. We are wanting to upgrade the director to 8G SFPs. What would the procedure be?
Thanks in adviance for any assistance!
04-26-2011 11:07 AM
If you use a 48000 as mentioned in the TAG you can insert FC8 port cards.
But you will have only within a ASIC 8 Gbit speed.
If FC frames has to be routed over the backend ASICs to a different front end ASIC you will have 4Gbit speed.
You can not insert 8Gbit SFPs into a 4gbit blade. This will not speed up you 4gbit port to 8gbit speed.
I hope this helps,
04-26-2011 01:08 PM
Extract 4Gig sfp, insert 8 Gig sfp.
It should autonegociate to 8 Gig once the FC cable is plugged back into teh 8Gig sfp, unless you have that port locked at 4Gig on the DCX for some reason.
04-26-2011 01:34 PM
Okay, so you probably see something like this?
Ports of Slot 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Speed 4G 4G 4G AN AN AN AN AN 4G 4G 4G AN AN AN AN AN
Do you want to set the DCX to AN? or hardset to 8?
Either way you're going to use the CLI command portCfgSpeed.
Configures the speed for a port or a range of ports.
Synopsis portcfgspeed port speed
portcfgspeed -i speed]
portcfgspeed -slot speed
Operands This command has the following operands:
slot For bladed systems only, specifies the slot number of the ports to be
configured, followed by a slash (/).
port Configures a single port identified by the port number relative its the slot on
-i index1 Configures a port or a range of ports identified by port index numbers.
Multiple port ranges are not supported with this command.
-f Ignores nonexisting ports. This operand is valid only with the -i option.
-slot Configures all ports on a slot or on a range of slots, for example, -s 3-5. You
may specify multiple slot ranges separated by a space, for example, -s 3-5
speed Sets speed for the specified ports. This operand is required. Valid values are
one of the following.
0 Autosensing mode
ax Autosensing mode (hardware). The port automatically configures for
maximum speed with enhanced retries.
s Auto-sensing mode (software). The port automatically configures for
maximum speed with enhanced retries.
1 The port is set at a fixed speed of 1 Gbps.
2 The port is set at a fixed speed of 2 Gbps.
4 The port is set at a fixed speed of 4 Gbps.
8 The port is set at a fixed speed of 8 Gbps.
So your CLI command will look something like this.
"portcfgspeed -slot 1-12 0"
That will set all of your ports to AutoNegociate on the DCX.
"portcfgspeed 1/7 0" to set on port 7 of blade 1 to auto.
Or if you have DCFM you can go into that
right click on the DCX you want to change, and go into the element manger - Hardware
Then on the left side of the screen in the element manager click on port admin
find the port or ports you want to change, and click on edit configuration.
follow the wizard, in the section that says specify FC parameters there is a drop down menu to set the speed.
when you're done with the wizard the port should be set to the speed you want then.
04-27-2011 08:48 AM
The trunk group will break up and reform after the change to auto.
So best practice and less disruptive to your routing, if you're doing this while traffic is running, would be to disable all of the isl ports in the trunk group.
then use "portcfgspeed -i speed]" (ex. portcfgspeed -i 20-24 0 where 20-24 are the isl ports in the trunk group.)
then enable all of the isl ports in the trunk group again.
04-27-2011 08:52 AM
Thank you for your information!
So there is not a need to break the trunk? basically, my steps are as follows:
disable the trunk group ports.
change the speed configuration to AN.
swap the SFPs.
enable the ports.
Am I correct with this plan?
Thanks again for your help!