HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual page 407

The delete argument is:
delete ipaddr netmask
The gateway address must be on the same IP subnet as one of the port IP addresses.
The following example shows two routes being added to an interface:
switch:admin06> portcfg iproute 8/ge0 create 192.168.11.0 255.255.255.0 192.168.100.1
1
switch:admin06> portcfg iproute 8/ge0 create 192.168.12.0 255.255.255.0 192.168.100.1
1
The following example verifies that the two routes have been successfully created:
switch:admin06> portshow iproute 8/ge0
Slot: 8 Port: ge0
IP Address Mask
------------------------------------------------------------------
192.168.100.0 255.255.255.0
192.168.100.0 255.255.255.0
192.168.11.0 255.255.255.0
192.168.12.0 255.255.255.0
Gateway Metric
192.168.100.40 0
192.168.100.41 0
192.168.100.1 1
192.168.100.1 1
Flags
Interface
Interface
Fabric OS 5.3.0 administrator guide 413