Chapter 56 VLAN
OLT2406 User’s Guide
446
This example enables ingress checking on ports ge-5-1 ~ ge-5-4.
56.7 Automatic VLAN Registration
GARP and GVRP are the protocols used to automatically register VLAN membership across switches.
56.7.1 GARP
GARP (Generic Attribute Registration Protocol) allows network switches to register and de-register
attribute values with other GARP participants within a bridged LAN. GARP is a protocol that provides a
generic mechanism for protocols that serve a more specific application, for example, GVRP.
56.7.1.1 GARP Timers
Switches join VLANs by making a declaration. A declaration is made by issuing a Join message using
GARP. Declarations are withdrawn by issuing a Leave message. A Leave All message terminates all
registrations. GARP timers set declaration timeout values.
56.7.2 GVRP
GVRP (GARP VLAN Registration Protocol) is a registration protocol that defines a way for switches to
register necessary VLAN members on ports across the network. Enable this function to permit VLAN
groups beyond the local OLT.
Please refer to the following table for common IEEE 802.1Q VLAN terminology.
OLT2406(config)# interface port-channel ge-5-1&&-4
OLT2406(config-interface)# ingress-check
Table 220 IEEE 802.1Q VLAN Terminology
VLAN PARAMETER TERM DESCRIPTION
VLAN Type Permanent VLAN This is a static VLAN created manually.
Dynamic VLAN This is a VLAN configured by a GVRP registration/deregistration
process.
VLAN Administrative
Control
Registration Fixed Fixed registration ports are permanent VLAN members.
Registration Forbidden Ports with registration forbidden are forbidden to join the
specified VLAN.
Normal Registration Ports dynamically join a VLAN using GVRP.
VLAN Tag Control Tagged Ports belonging to the specified VLAN tag all outgoing frames
transmitted.
Untagged Ports belonging to the specified VLAN don't tag all outgoing
frames transmitted.
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