Technical data

Fabric OS FCIP Administrator’s Guide 27

53-1002474-01

QoS, DSCP, and VLANs

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.

The following example adds an entry that tags all frames from IP address 192.168.10.1

destined for IP address 192.168.20.1 with a VLAN ID of 100, and a L2CoS value of 3.

switch:admin> portcfg vlantag 8/ge0 add 192.168.10.1 100 3 192.168.20.1

NOTE

To add entries with crossport addresses to the VLAN tag table, refer to “Configuring VLAN tags with

crossports” on page 14.

For more details on using the portCfg vlantag command, refer to the Fabric OS Command

Reference Manual.