Raisecom
ISCOM2600G-HI (A) Series Configuration Guide
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
GVRP-supportive switches can send local VLAN registration information to other switches so
that they have consistent VLAN registration information in the same VLAN. VLAN
registration information sent by GVRP includes manually configured local static registration
information and dynamic registration information from other switches.
GVRP has three registration modes:
Normal: in this mode, GVRP allows dynamic registration and deregistration of VLANs,
and sends dynamic and static VLAN information.
Fixed: in this mode, GVRP forbids dynamic registration and deregistration of VLANs,
and sends static VLAN information rather than dynamic VLAN information.
Forbidden: in this mode, GVRP forbids dynamic registration and deregistration of
VLANs, forbids creating static VLANs on the interface, deletes all VLANs except
VLAN 1, allows packets of the default VLAN (VLAN 1) to pass, and transmits packets
of the default VLAN to other GARP members.
As shown in Figure 2-30, to configure VLANs on multiple devices on a network and allow
packets of the specified VLAN to pass are complex. By using GVRP to dynamically register
and transmit the specified VLAN, the network administrator can improve working efficiency
and accuracy.
Figure 2-30 Principles of GVRP
As shown in Figure 2-30, GE 1/1/1 on Switch 1, GE 1/1/1 and GE 1/1/2 on Switch 2, and GE
1/1/1 on Switch N are Trunk interfaces. Create VLANs 5–50 on Switch 1, and then these
VLANs will be dynamically registered on the Rx interface along the red direction until
Switch N is registered. Create VLANs 51–100 on Switch N, and then these VLANs will be
dynamically registered on the Rx interface along the blue direction so that each switch can
completely process packets of VLANs 5–100.
2.14.2 Preparing for configurations
Scenario
GARP enables configurations of a GARP member to fast spread to all GARP-enabled devices
in the LAN.
The values of the Join timer, Leaver timer, and LeaveAll timer configured through GARP will
be applied to all GARP applications in the LAN, including GVRP and GMRP features.
Prerequisite
N/A
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