Fabric OS Administrator's Guide, 7.1.0 (53-1002745-02, March 2013)

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53-1002745-02

QoS zone-based traffic prioritization

To preserve existing trunk groups, before you install the Adaptive Networking license, manually

disable QoS on these ports, as described in “Manually disabling QoS on trunked ports” on

page 524.

Manually disabling QoS on trunked ports

NOTE

QoS is disabled by default on long-distance 8-Gbps and 16-Gbps ports. The following procedure does

not apply to these ports.

1. Connect to the switch and log in using an account with admin permissions.

2. Display the ISL information by using the following command:

islshow

3. Identify E_Ports on which QoS should be manually disabled. In the islshow output; these ports

have all of the following characteristics:

• Are 8-Gbps or 16-Gbps ports

• Have trunking enabled

• Have QoS disabled

4. Check whether QoS is enabled on each port identified in step 3, by using the following

command:

portcfgshow

In the output, the value of QOS E_Port is AE if QoS is automatically enabled by default, ON if

QoS is enabled manually, and OFF or "

.." if QoS is disabled.

5. Manually disable QoS on all of the ports identified in step 3 for which QoS is enabled (in the

portcfgshow output, QOS E_Port is AE or ON).

portcfgqos --disable [slot/]port

ATTENTION

This is a disruptive operation.

Example

In this example, the islshow output displays ports involved in three ISLs:

In the portcfgshow output, the value of QOS_E_Port is AE for port 19 and "

.." for port 24. This

means that QoS is enabled by default on port 19 and disabled on port 24.

You need to disable QoS on port 19.

switch:admin> islshow

1: 2->300 10:00:00:05:1e:43:00:00 100 DCX sp: 8.000G bw: 32.000G TRUNK QOS

3: 19-> 10 10:00:00:05:1e:41:43:ac 50 B300 sp: 8.000G bw: 64.000G TRUNK

4: 24-> 12 10:00:00:05:1e:41:42:ad 30 B5300 sp: 8.000G bw: 16.000G TRUNK

• Port 2 QoS is already enabled on this ISL, so you should not disable QoS on port 2.

• Ports 19 and 24 QoS is disabled on these ISLs. Check the portcfgshow output to determine

whether QoS is disabled on these ports.