Installation guide

2 – General Description
Remote SAN Island Connectivity
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Remote SAN Island Connectivity
The iSR6142 router supports inter-connecting remote SAN islands (see
Figure 2-2).
Figure 2-2 Remote SAN Island Connectivity
This configuration has the following additional requirements:
 At least one FC port of iSR6142 connected to FC SAN.
 Accessibility between the iSCSI/GE (Gigabit Ethernet ports on the router)
port IP addresses of remote router and iSCSI/GE port IP addresses of local
routers.
 Accessibility between the remote iSR6142 management port IP address and
local iSR6142 management port IP address.
When connecting SANs over long distances, you must determine the round-trip
latencies between two router connections. You can discover these round-trip
latencies using the ping command in CLI. (See iSR6142 Router CLI User's
Guide.)
Using this round-trip latency number, you can determine the window scaling factor
for GE (iSCSI) port, as described in Performance Tuning on page 3-4. By default,
window scaling is set to 1 (64K) TCP window size.