User guide

needs to be set based on the application needs. If the local and remote circuit configurations’

Keep Alive Timeout values do not match, the tunnel uses the lower of the two configured values.

• The configured FCIP Circuit Keep Alive Timeout should be set to the same value on both ends

of the FCIP connections.

• To perform the following operations, delete the FCIP configuration on the affected ports first:

Switching modes between 1 Gbps/10 Gbps/Dual◦

◦ Moving VE/GE port between logical switches

◦ Cleaning up the configuration before removing the blade

• Inband Management on the HP 1606 SAN Extension Switch or HP DC SAN Director

Multiprotocol Extension Blade has the following restrictions:

◦ Firmwaredownload over the Inband interface is not supported.

◦ IPv6 addressing is not supported.

• Fabric OS 7.0.0x supports up to six 1 Gbps circuits on HP 1606 SAN Extension Switch and

up to ten 1 Gbps circuits on HP DC SAN Director Multiprotocol Extension Blade per VE/FCIP

Tunnel on 1 GbE interfaces. As a best practice, the FC-traffic through VE tunnel should not

exceed recommended over-subscription guidelines. General guidelines are 2:1 over-subscription

without compression (for example, 1 Gbps FC traffic over 500 Mbps tunnel) and 4:1 with

compression.

• Any firmware activation disrupts I/O traffic on FCIP links.

• Under Traffic Isolation Zone, configurations with failover enabled, non-TI zone traffic uses the

dedicated path if no other E or VE paths through the fabric exist, or if the non-dedicated paths

are not the shortest paths. (A higher bandwidth tunnel with multiple circuits becomes the

shortest path compared to a single tunnel).

• A VE/VEX Tunnel and E/EX FC port cannot connect to the same domain at the same time.

• Latency measurements supported on FCIP Tunnels are for 1 GbE & 10 GbE a 200 ms round

trip time and 1% loss.

• HP 1606 SAN Extension Switch supports Optical and Copper Media types on GE0 and GE1

interfaces. Copper Media type is default on GE0/GE1 ports and does not support auto-sense

functions.

• When GE0 and GE1 have copper media connected, auto-negotiation must be enabled on

the other end of this port. The only speed that can be auto-negotiated with copper media is

1 Gbps.

• After inserting a 4 Gbps SFP in GE ports of an HP DC SAN Director Multiprotocol Extension

Blade or HP 1606 SAN Extension Switch, sometimes sfpshow output might display Cannot

read serial data! . Removing and re-inserting the SFP should resolve this issue. HP

recommends that users perform sfpshow immediately after inserting the SFP and ensure SFP

is seated properly before connecting the cables.

• When running Fabric OS 7.0.0a or later, if any of the following features are enabled in the

FCIP configuration, a downgrade operation to pre-Fabric OS 7.0.0a is blocked until the

features are removed from the FCIP configuration:

◦ Inband Management

◦ Multigigabit Circuit

◦ Shared GE among Logical Switches

◦ Auto-mode compression option

◦ VE as XISL

◦ 10 GigE lossless failover