Eion LibraPlus 5845, Руководство пользователя, Страница: 78 / 140

No-Form. N/A.
Arguments.
bridge-group-index An index of a bridge group to view. If the argument is
omitted, all bridge groups are displayed.
Example 4.37. View Members of Bridge Group
EION: show bridge-group 0
Bridge name Bridge ID STP Interfaces
Bridge 0 8000.06026f23138c no Wireless 0
FastEthernet 0
show interface
{
name
} {
index
}
mac-address-table
Description.
View the MAC address table of a
Bridge
interface.
No-Form.
N/A.
Arguments.
No arguments.
Example 4.38. View MAC Address of a Bridge Interface
EION: show interface Bridge 0 mac-table
Interface MAC address Local Ageing timer
FastEthernet 0 0003.475f.4a5c No 0.75
Wireless 0 0011.95df.8870 Yes 0.00
FastEthernet 0 000e.a61b.cef6 No 77.30
FastEthernet 0 0018.f3bc.dded Yes 0.00
FastEthernet 0 001b.6394.51b0 No 47.89
FastEthernet 0 0050.8b01.7b35 No 28.82
FastEthernet 0 0014.c2d8.8b3e No 126.81
FastEthernet 0 000d.293d.9e81 No 11.10
FastEthernet 0 0001.6cd2.f27a No 59.11
4.5. VLAN
4.5.1. Overview
By using VLAN, one can logically group networks. Virtual LANs are essentially Layer 2 constructs,
whereas IP subnets are Layer 3 constructs. VLANs are created to provide the segmentation services
traditionally provided by routers in LAN configurations.
Each VLAN is a logical network, and packets destined for stations that do not belong to the same
VLAN must be forwarded through a routing device like the LibraPlus.
The protocol used in configuring virtual LANs is IEEE 802.1Q. IEEE 802.1Q adds explicit tagging
to ethernet frames. The IEEE 802.1Q header contains a 4-byte tag header containing a 2-byte tag protocol
identifier (TPID) and a 2-byte tag control information (TCI). The TPID has a fixed value of
0x8100
that indicates that the frame carries the 802.1Q/802.1p tag information. The TCI contains the following
elements:
68
Configuration