VTP vs GVRP, the winner? Neither..
In a large network, keeping VLANs synchronized can be a challenge.
Having automatic tools to ensure automatic and correct distribution of
VLANs helps to reduce the chance of some of our human errors and typo's,
and also just to make our lives easier
Two fairly well-known protocols that are capable of automatic
propagation of VLAN information are: VTP and GVRP. Both protocols
provide similar functionality:
1. VTP is a proprietary protocol from Cisco. Which is great for
distributing VLAN information between switches, so-long as it's an all
Cisco network, things are great.
2. GVRP is a standards based
solution, but suffers from a less widespread support, some vendors such
as Cisco do not support GVRP (only on the old CatOS)
Either can
work find if you only have a single vendor of switch to manage, however
in a mixed environment you will likely need a SNMP Manamagent utility
that can synchronize between the two, as there doesn't seem to be a
Layer-2-protcol based solution, so keep your eyes open for plug-in's for
your management applications, or support within the application for
VLAN synchronization.
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