User Manual

Enterasys X-Pedition User Reference Manual 165
Configuring VRRP
increment the ID’s first digit (e.g., 101–105 becomes 201–205). The following example shows the
corrected IDs.
Hashing
Hashing is a method used to store and access items without having to create a separate storage
location for each item. Similar to a mail system that uses single slots for A-K, L-O, P-S, and T-Z,
L2 hashing uses “buckets” to store up to four MAC addresses in the same location. Typically, once
all of the buckets are filled, the router will remove an old item to make room for a new one.
However, if entries are made permanent they cannot be removed and the system cannot create a
place to store additional VRRP MAC address information. This prevents the router from starting
more VRRPs. To correct this problem, renumber the IDs or change the way hashing is implemented
vlan create ip101 id 1101
vlan create ip102 id 1102
vlan create ip103 id 1103
vlan create ip104 id 1104
vlan create ip105 id 1105
. . .
interface create ip ip101 address-netmask 10.0.0.100/24 vlan ip101
interface create ip ip102 address-netmask 10.0.0.101/24 vlan ip102
interface create ip ip103 address-netmask 10.0.0.102/24 vlan ip103
interface create ip ip104 address-netmask 10.0.0.103/24 vlan ip104
interface create ip ip105 address-netmask 10.0.0.104/24 vlan ip105
. . .
ip-redundancy create vrrp 1 interface ip101
ip-redundancy create vrrp 2 interface ip102
ip-redundancy create vrrp 3 interface ip103
ip-redundancy create vrrp 4 interface ip104
ip-redundancy create vrrp 5 interface ip105
. . .
ip-redundancy start vrrp 1 interface ip101
ip-redundancy start vrrp 2 interface ip102
ip-redundancy start vrrp 3 interface ip103
ip-redundancy start vrrp 4 interface ip104
ip-redundancy start vrrp 5 interface ip105
}
}
IDs are now unique