Avaya Cajun P580, Руководство пользователя, Страница: 167 / 770

Document No. 650-100-700, Issue 1 6-9
Using VLANs, Hunt Groups, and VTP Snooping
CAUTION:
5. See Table 6-1 to configure the Create VLAN dialog box parameters:
6. Click APPLY to create the new VLAN, or CANCEL to restore previous
settings.
Before configuring Hash Tables and Auto Increment Hash Table
parameters, Avaya strongly recommends that you review the
contents of
Chapter 9 , “ Managing the Address Forwarding Table .”
Table 6-1. Create VLAN Dialog Box Parameters
Parameter Definition
Name Unique Name assigned to the VLAN in a switch. A
maximum of 31 alphanumeric characters
ID Identifier used throughout the network to identify this
VLAN. If you want ports on more than one device to
participate in a particular VLAN, you must use the same
VLAN ID to identify the VLAN on every device.VLAN ID
1 is reserved for the Default VLAN. VLAN ID 4097 is
reserved for the discard VLAN.
Note:
The switch supports up to 1000 VLANs and a
maximum of 24,000 MAC Addresses.
Note:
In
order to support the maximum number of VLANs,
VLAN ID numbers should be chosen from the
range of 1 to 1000.
Initial Hash
Table Size For every VLAN created, a hash table is allocated of the
initial size. The hash table keeps track of the Layer 2
(MAC) addresses associated with a VLAN.
The default setting for Initial Hash Table Size,1024,
allows the user to configure approximately 20 simultaneous
VLANs. However, the switch supports 1,000 VLANs. To
support 1000 simultaneous VLANs, the Hash table size
should be at 16. To increase the number of VLANs you can
implement, simply decrease the initial hash table size for
each new address table instance.
Note:
The number of addresses for a given hash table is
approximately 4:1 (for example, if you have a hash
table of 6 bytes, the VLAN can hold 64 addresses
in its table instance.
Auto Increment
HT Size Auto-Increment HT (Hash Table) Size determines whether
the size of the VLAN’s Hash Table can grow if software
determines it to be undersized for the number of known
Layer 2 addresses of a VLAN. Select TRUE to allow the
switch to increase the size of the Hash Table. Select FALSE
to disable the feature. The default is TRUE.