Dell PowerConnect B-FCXs, Руководство по настройке

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800 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Configuring IP parameters – Layer 3 Switches
26
•
Virtual routing interface (also called a Virtual Ethernet or “VE”)
•
Loopback interface
By default, you can configure up to 24 IP addresses on each interface.
You can increase this amount to up to 128 IP subnet addresses per port by increasing the size of
the ip-subnet-port table.
Refer to the section “Displaying and modifying system parameter default settings” on page 321.
NOTE
Once you configure a virtual routing interface on a VLAN, you cannot configure Layer 3 interface
parameters on individual ports. Instead, you must configure the parameters on the virtual routing
interface itself.
Dell PowerConnect devices support both classical IP network masks (Class A, B, and C subnet
masks, and so on) and Classless Interdomain Routing (CIDR) network prefix masks:
•
To enter a classical network mask, enter the mask in IP address format. For example, enter
“209.157.22.99 255.255.255.0” for an IP address with a Class-C subnet mask.
•
To enter a prefix network mask, enter a forward slash ( / ) and the number of bits in the mask
immediately after the IP address. For example, enter “209.157.22.99/24” for an IP address
that has a network mask with 24 significant bits (ones).
By default, the CLI displays network masks in classical IP address format (example:
255.255.255.0). You can change the display to prefix format. Refer to
“Changing the network mask
display to prefix format” on page 869.
Assigning an IP address to an Ethernet port
To assign an IP address to port 1/1, enter the following commands.
PowerConnect(config)# interface ethernet 1/1
PowerConnect(config-if-1/1)# ip address 192.45.6.1 255.255.255.0
You also can enter the IP address and mask in CIDR format, as follows.
PowerConnect(config-if-1/1)# ip address 192.45.6.1/24
Syntax: [no] ip address <ip-addr> <ip-mask> [ospf-ignore | ospf-passive | secondary]
or
Syntax: [no] ip address <ip-addr> / <mask-bits> [ospf-ignore | ospf-passive | secondary]
The ospf-ignore | ospf-passive parameters modify the Layer 3 Switch defaults for adjacency
formation and interface advertisement. Use one of these parameters if you are configuring multiple
IP subnet addresses on the interface but you want to prevent OSPF from running on some of the
subnets:
•
ospf-passive – This option disables adjacency formation with OSPF neighbors. By default,
when OSPF is enabled on an interface, the software forms OSPF router adjacencies between
each primary IP address on the interface and the OSPF neighbor attached to the interface.
•
ospf-ignore – This option disables OSPF adjacency formation and also disables advertisement
of the interface into OSPF. The subnet is completely ignored by OSPF.