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

Fabric OS FCIP Administrator’s Guide 29

53-1002748-01

Compression options

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

The following example adds an entry that tags al frames from a crossport with local address

192.168.11.20, VLAN ID of 200, and a LSCoS value of 1.

switch:admin> portcfg vlantag 8/xge0 add 192.168.11.20 200 1 –x

3. Display display the VLAN tag configuration use the portshow vlantag command as follows:

switch:admin> portshow vlantag 8/ge0

switch:admin> portshow vlantag 8/xge0

For more details on using the portCfg vlantag and portshow vlantag commands refer to the Fabric

OS Command Reference Manual.

Compression options

The following compression options are available on both the 7800 switch and the FX8-24 blade.

Compression is defined on the FCIP tunnel.

• Standard - This is a hardware compression mode.

• Moderate - This is a combination of hardware and software compression that provides more

compression than hardware compression alone. This option supports up to 8 Gbps of FC

traffic.

• Aggressive - This is software-only compression that provides a more aggressive algorithm than

used for the standard and moderate options. This option supports up to 2.5 Gbps of FC traffic.

• Auto - This allows the system to set the best compression mode based on the tunnel’s

configured bandwidth and the aggregate bandwidth of all tunnels in the 7800 switch or FX8-24

blade.

NOTE

Fibre Channel throughput for all compression modes depends on the compression ratio achievable

for the data pattern. Brocade makes no promises, guarantees, or assumptions about compression

ratio that any application may achieve.

Follow the guidelines for assigning explicit compression levels for tunnels in Table 6.

TABLE 6 Assigning compression levels

Total effective tunnels FC side bandwidth Compression level

Equal to or Less than 512 Mbps Aggressive

More than 512 and less than or equal to 2 Gbps Moderate

More than 2 Gbps Standard