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THE
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WITCH
3-16
Displaying Bridge Extension Capabilities
The Bridge MIB includes extensions for managed devices that support
Multicast Filtering, Traffic Classes, and Virtual LANs. You can access these
extensions to display default settings for the key variables.
Field Attributes
• Extended Multicast Filtering Services – This switch does not
support the filtering of individual multicast addresses based on GMRP
(GARP Multicast Registration Protocol).
• Traffic Classes – This switch provides mapping of user priorities to
multiple traffic classes. (Refer to “Class of Service Configuration” on
page 3-164.)
• Static Entry Individual Port – This switch allows static filtering for
unicast and multicast addresses. (Refer to “Setting Static Addresses”
on page 3-112.)
• VLAN Learning – This switch uses Independent VLAN Learning
(IVL), where each port maintains its own filtering database.
• Configurable PVID Tagging – This switch allows you to override
the default Port VLAN ID (PVID used in frame tags) and egress status
(VLAN-Tagged or Untagged) on each port. (Refer to “VLAN
Configuration” on page 3-142.)
• Local VLAN Capable – This switch supports multiple local bridges;
i.e., multiple spanning trees. (Refer to “Configuring Multiple Spanning
Trees” on page 3-134.)
• GMRP – GARP Multicast Registration Protocol (GMRP) allows
network devices to register endstations with multicast groups. This
switch does not support GMRP; it uses the Internet Group
Management Protocol (IGMP) to provide automatic multicast
filtering.