Brocade Fabric OS FCIP Administrator's Guide v7.1.0 (53-1002748-01, March 2013)

28 Fabric OS FCIP Administrator’s Guide

53-1002748-01

QoS, DSCP, and VLANs

The following example creates an additional FCIP circuit with a different VLAN tag.

switch:admin> portcfg fcipcircuit 16 create 1 192.168.2.21 192.168.2.11 100000

-v 200

Operation Succeeded

The following example shows the fcipcircuit modify command that changes the VLAN tag and

L2CoS levels for circuit 0. Parameters are the same for both the create and modify options.

switch:admin> portcfg fcipcircuit 16 modify 0 -v 300 --l2cos-f-class 7

--l2cos-high 5 --l2cos-medium 3 --l2cos-low 1

The following example shows the fcipcircuit modify command that changes the DSCP values for

circuit 0. Parameters are the same for both the create and modify options.

switch:admin> portcfg fcipcircuit 16 modify 0 --dscp-f 32 --dscp-h 16 --dscp-m

8 --dscp-l 4

Operation Succeeded

The following example shows the use of the portshow command to display the tunnel and circuit

values. Use the -c option as shown to include circuit values.

switch:admin> portshow fciptunnel 16 -c

NOTE

For more information on using Fabric OS commands, optional arguments, and command output

refer to the Fabric OS Command Reference Manual.

Managing the VLAN tag table

The VLAN tag table is used by ingress processing to filter inbound VLAN tagged frames per IP

interface. The table is used to determine how to tag a frame that is not already tagged. If a VLAN

tagged frame is received from the network and there is no entry in the VLAN tag table for the VLAN

ID, the frame is discarded. The per IP interface VLAN configuration is for non-data path traffic only,

such as ICMP or ping commands,. If Class-F traffic or data path traffic needs to be tagged, it must

be done through the -v, - -vlan-tagging option on the fcipcircuit create or modify command.

To tag frames destined for a specific host address, you must create an entry with an exact

matching destination address in the table. Only frames destined for that address are tagged with

the associated VLAN ID. To tag frames destined for a specific network, you must create a

destination address entry for the network. For example; if a destination address of 192.168.100.0

is specified, then all frames destined for the 192.168.100.0 network are tagged with the

associated VLAN ID, assuming a network mask of 255.255.255.0. If frames are already VLAN

tagged, those tags take precedence over entries in this table.

NOTE

If you do not specify a destination IP address, the destination address defaults to 0.0.0.0, and all

frames are tagged with the associated VLAN tag.

1. Connect to the switch and log in using an account assigned to the admin role.

2. Enter the portCfg vlantag command to add or delete entries in the VLAN tag table. The general

syntax for the portCfg vlantag command is as follows:

portCfg vlantag [add|delete] ipif_addr vlan_id L2CoS [dst_IP_addr]

For full details on syntax and using this command, refer to the Fabric OS Command Reference

Manual.