Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 1131)

Brocade 6910 Ethernet Access Switch Configuration Guide 1075
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Chapter
45
General IP Routing
In this chapter
This chapter provides information on network functions including:
• Static Routes – Configures static routes to other network segments.
• Routing Table – Displays routing entries learned through dynamic routing and statically
configured entries.
Overview
This switch supports IP routing via static routing definitions. When IP routing is functioning, this
switch acts as a wire-speed router, passing traffic between VLANs with different IP interfaces, and
routing traffic to external IP networks. However, when the switch is first booted, default routing can
only forward traffic between local IP interfaces. As with all traditional routers, static routing must
first be configured to work.
Initial Configuration
By default, all ports belong to the same VLAN and the switch provides only Layer 2 functionality. To
segment the attached network, first create VLANs for each unique user group or application traffic
(see
“Configuring VLAN Groups” on page 752), assign all ports that belong to the same group to
these VLANs (see “Adding Static Members to VLANs” on page 754), and then assign an IP interface
to each VLAN (see “Configuring IP Routing Interfaces” on page 1077). By separating the network
into different VLANs, it can be partitioned into subnetworks that are disconnected at Layer 2.
Network traffic within the same subnet is still switched using Layer 2 switching. And the VLANs can
now be interconnected (as required) with Layer 3 switching.
Each VLAN represents a virtual interface to Layer 3. You just need to provide the network address
for each virtual interface, and the traffic between different subnetworks will be routed by Layer 3
switching.