Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 789)

Multi-Service IronWare Switching Configuration Guide 759
53-1003036-02
Dynamic ARP inspection
19
Supported applications
• PBR PBR supports use of a multi-port static ARP entry as an IP next hop.
• Trunk ports Primary trunk ports can be configured in multi-port static ARPs. If a secondary
trunk port is included in a multi-port ARP entry, however, the trunk will not be deployed.
• ARP inspection ARP inspection is performed for multi-port static ARPs the same as for normal
static ARP entries.
Unsupported applications
• IP tunnel If an IP tunnel’s next hop is resolved to a multi-port static ARP entry, the tunnel will
not be brought up.
• MPLS next-hop Configuring an MPLS uplink on the VE interface associated with a multi-port
static ARP will prevent instantiation of the ARP.
• MCT The ICL ports in MCT and clients are not supported by multi-port static ARP and MAC.
• PB/PBB The non-default port types are not supported by multi-port static ARP and MAC on
PB/PBB.
Creating a floating static ARP entry
You can create a static ARP entry without port assignments.
When a floating static ARP entry (Static ARP Inspection entry without port defined) is added to ARP
Inspection table, the mapping is checked against the current static ARP table. If ARP entry with a
matching IP but mismatch MAC is found, it will be deleted and a re-arp on the IP will be issued.
When an ARP entry is deleted from ARP Inspection table, the corresponding entry in the static ARP
table will also be deleted.
To create a floating static ARP entry for a static MAC entry, enter a command such as the following.
Brocade(config)# arp 10.53.4.2 1245.7654.2348
The command adds a floating static ARP entry that maps IP address 10.53.4.2 to MAC address
1245.7654.2348.
Syntax: [no] arp ip-add mac-addr [ethernet portnum l vlan vlan_id]
The ip-addr parameter specifies the IP address of the device that has the MAC address of the entry.
The mac-addr parameter specifies the MAC address of the entry.
The ethernet portnum parameter specifies the port number attached to the device that has the
MAC address of the entry, and is only valid for original static ARP entries.
The vlan vlan_id parameter specifies the ID of a configured VLAN.
Configuring a Virtual Routing Instance (VRF)
To configure a virtual routing instance (VRF), enter a command such as the following.
Brocade(config)# vrf vpn1
Syntax: [no] vrf vrf-name
The vrf parameter specifies the virtual routing instance (VRF) specified by the variable vrf-name.