User guide
Table Of Contents
- Part1
- Part2
- Part2
- Part3
- Part4
- Part5
- Dynamic Link Aggregation
- Link Aggregation ID
- RADIUS
- Configuring RADIUS Server Settings
- Configuring IEEE802.1x
- Supported MIBs
- SNMP Traps
- Configuring SNMP
- Setting Up Login Accounts
- Requirements for Using SSH
- HTTPS Example
- Internet Explorer Warning Messages
- Netscape Navigator Warning Messages
- Login Screen
- Strict Priority Queuing (SPQ)
- Weighted Round Robin Scheduling (WRR)
- DiffServ
- DSCP and Per-Hop Behavior
- DHCP “Relay Agent Information Option”
- DHCP Relay Agent Circuit ID Sub-option Format
- Part6
- Part7
- Switch Configuration File
- Access Priority
- The Console Port
- Telnet
- List of Available Commands
- Detailed Command Information
- Logging Out
- User Mode
- Enable Mode
- Configure Mode
- config-vlan Commands
- interface Commands
- show system-information
- show hardware-monitor
- show ip
- show logging
- show interface
- show mac address-table
- Backing up Configuration
- Restoring Configuration
- Using a Different Configuration File
- Resetting to the Factory Default
- no mirror-port
- no https timeout
- no trunk
- no port-access-authenticator
- no ssh
- interface
- bpdu-control
- broadcast-limit
- bandwidth-limit
- mirror
- gvrp
- ingress-check
- frame-type
- vlan-trunking
- spq
- wrr
- egress set
- qos priority
- name
- speed-duplex
- Static Entries (SVLAN Table)
- Dynamic Entries (DVLAN Table)
- GARP Status
- GARP Timer
- GVRP Timer
- Enable GVRP
- Disable GVRP
- Set Port VID
- Set Acceptable Frame Type
- Enable or Disable Port GVRP
- Modify Static VLAN
- Delete VLAN ID
Dimension GS-3012 Gigabit Ethernet Switch
30-6 IEEE 802.1Q Tagged VLAN Commands
where
<vlan-id> =
The VLAN ID [1 – 4094].
<name-str> =
A name to identify the SVLAN entry.
<port-list> =
This is the switch port list.
Enter
fixed to register the <port-list> to the static VLAN table with <vlan-id>.
Enter
normal to confirm registration of the <port-list> to the static VLAN table with <vlan-id>.
Enter
forbidden to block a <port-list> from joining the static VLAN table with <vlan-id>.
Enter
no fixed or no forbidden to change <port-list> to normal status.
Enter
untagged to send outgoing frames without a tag.
Enter
no untagged to tag outgoing frames.
Modify a Static VLAN Table Example
The following example configures ports 1 to 5 as fixed and untagged ports in VLAN 2000.
Figure 30-8 Modifying Static VLAN Example
Forwarding Process Example
Tagged Frames
1. First the switch checks the VLAN ID (VID) of tagged frames or assigns temporary VIDs to untagged
frames.
2. The switch then checks the VID in a frame’s tag against the SVLAN table.
3. The switch notes what the SVLAN table says (that is, the SVLAN tells the switch whether or not to
forward a frame and if the forwarded frames should have tags).
4. Then the switch applies the port filter to finish the forwarding decision. This means that frames may be
dropped even if the SVLAN says to forward them. Frames might also be dropped if they are sent to a CPE
(customer premises equipment) DSL device that does not accept tagged frames.
Untagged Frames
1. An untagged frame comes in from the LAN.
2. The switch checks the PVID table and assigns a temporary VID of 1.
3. The switch ignores the port from which the frame came, because the switch does not send a frame to the
port from which it came. The switch also does not forward frames to “forbidden” ports.
4. If after looking at the SVLAN, the switch does not have any ports to which it will send the frame, it won’t
check the port filter.
GS-3012 (config)# vlan 2000
GS-3012 (config-vlan)# fixed 1-5
GS-3012 (config-vlan)# untagged 1-5