Reference Guide

Fabric OS FCIP Administrator’s Guide 15
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FCIP trunking
2
Using traceroute with crossports
You can trace a route to a crossport address, as in the following example. Note that if the crossport
or x options are not specified and the address is on the crossport, the portcmd command will fail
with an unknown IP address.
portcmd --traceroute 8/xge0 -s 192.168.11.20 -d 1.1.1.1 –x
or
portcmd --traceroute 8/xge0 -s 192.168.11.20 -d 1.1.1.1 --crossport
For more information on using traceroute, refer to “Using traceroute” on page 84.
Crossport bandwidth allocation
There is a total of 10 Gbps crossport bandwidth allocation for the entire FX8-24 blade. The total
crossport bandwidth cannot exceed 10 Gbps for all VE_Ports on the blade. Crossport bandwidth
allocation for 10GbE ports is calculated as follows
• The total crossport bandwidth allocation is calculated by adding up the consumed bandwidth
for every FCIP tunnel using a crossport IP address.
• The consumed bandwidth for each FCIP tunnel is calculated by adding up the maximum
committed rates (not rounded) for all metric 0 circuits that use a crossport IPIF, and then
adding up the maximum rates (not rounded) for all metric 1 circuits.
FCIP trunking
FCIP trunking is a method for managing the use of WAN bandwidth and providing redundant paths
over the WAN that can protect against transmission loss due to WAN failure. Trunking is enabled by
creating logical circuits within an FCIP tunnel. A tunnel can have multiple circuits. You can configure
up to 6 circuits on tunnels between 7800 switches and up to 10 on tunnels between FX8-24
blades. Each circuit is a connection between a pair of IP addresses that are associated with source
and destination endpoints of an FCIP tunnel, as shown in Figure 4.
FIGURE 4 FCIP tunnel and FCIP circuits
FCIP Circuits
IP Router
10.0.0.1
IP Router
10.0.1.1
10.0.0.2
10.0.0.3
10.0.0.4
10.0.0.5
FCIP Circuits
FCIP Tunnel
WAN
10.0.1.2
10.0.1.3
10.0.1.4
10.0.1.5