Product manual
AX Series Network Partition: Solution Guide [Basic] Second Edition
© 2009-2010 ALAXALA Networks Corporation. All rights reserved.
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3.1.1 Important points in the configuration
(1) Assign the VRF configuration only to the L3 core device
Assign the VRF configuration only to the L3 core device. No VRF settings are needed for any peripherals
consisting of L2 networks. VRF IDs, the identifiers for VRF instances, must be a number equal to or greater than
2. When L2 protocol is not used at the same time, as in this configuration, the maximum number cannot exceed
250.
(2) Disable spanning trees
Using VRF requires the prohibition of spanning trees. You need to disable spanning trees (PVST+), which are
activated by default.
(3) Activate VRF in a mode where no L2 protocol is enabled at the same time
L2 protocol is not used simultaneously if the system is based on an FT network. This setting is performed using
the vrf mode command. When using the vrf mode command to change the operation mode, some of the devices
(the BSU in the AX6700S and the PSP in the AX6300S series) must be restarted. (A confirmation message will
be displayed when the command is executed.)
(4) Assign VLANs to the partitions (VRF)
The vrf forwarding setting in the VLAN interfaces defines which partition is assigned to which VLAN. If this
setting is omitted, the VLAN is assigned to the global network.
(5) Routing protocols, if any, must be assigned to a partition (VRF) as an operating point
As with VLANs, routing protocols must be assigned to one of the partitions. However, the method for specifying
VRF is different according to the routing protocols used.
For OSPF, define VRF IDs using the router command, which specifies the use of OSPF. For RIP, define the
VRF instance as one of the ipv4 address families.
If there is no VRF setting, the protocol will operate in the global network.
(6) Remote control must be via the global network
If you want to remotely control VRF-enabled devices via telnet or FTP, you must use the global network.
Remote log collection (syslog) is available from any partition, starting from software ver.11.2.