Setting The Mac Masquerade Address - Dell 3-DNS Administrator's Manual

Setting the MAC masquerade address

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3-DNS Administrator Guide
To set the fail-over timeout and arm the fail-safe from the
command line
Using the vlan command, you may set the timeout period and also arm or
disarm the fail-safe.
To set the timeout, type:
b vlan <vlan_name> timeout <timeout_in_seconds>
To arm the fail-safe, type:
b vlan <vlan_name> failsafe arm
To disarm the fail-safe, type:
b vlan <vlan_name> failsafe disarm
You can share the media access control (MAC) masquerade address
between 3-DNS units in a redundant system. This option has the following
advantages:
• Increased reliability and failover speed, especially in lossy networks
• Interoperability with switches that are slow to respond to the network
changes
• Interoperability with switches that are configured to ignore network
changes
Note
For sensible operation, you must set the MAC masquerade address to be the
same on both the active and standby units. To do this, configure the shared
MAC address manually, by editing the bigip_base.conf file on both units.
Do not use the bigpipe config sync command.
The MAC address for a VLAN is the MAC address of the first interface to
be mapped to the VLAN, typically 4.1 for external, and 5.1 for internal.
You can view the interfaces mapped to a VLAN using the following
command:
b vlan show
You can view the MAC addresses for the interfaces on the 3-DNS
Controller using the following command:
b interface show verbose
Use the following syntax to set the MAC masquerade address to be shared
by both 3-DNS units in the redundant system.
b vlan <vlan_name> mac_masq <MAC_addr>
Post-Setup Tasks
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