CISCO SG 500-52

Description

panning Tree Protocol
Standard 802.1d Spanning Tree Support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default
Multiple spanning tree instances using 802.1s (MSTP). 16 instances are supported
Port grouping/link aggregation
Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
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Up to 32 groups
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Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad LAG
VLAN
Support for up to 4096 VLANs simultaneously Port-based and 802.1Q tag-based VLANs MAC-based VLAN
Management VLAN
PVE (Private VLAN Edge), also known as Protected Port, with multiple uplinks
Guest VLAN Unauthenticated VLAN Protocol-based VLAN CPE VLAN
Dynamic VLAN assignment via Radius server along with 802.1x client authentication
Voice VLAN
Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver network-wide zero touch deployment of voice endpoints and call control devices.
Multicast TV VLAN
Multicast TV VLAN allows the single multicast VLAN to be shared in the network while subscribers remain in separate VLANs. This feature is also known as Multicast VLAN Registration (MVR).
Q-in-Q
VLANs transparently cross over a service provider network while isolating traffic among customers.
GVRP/GARP
Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP) enable automatic propagation and configuration of VLANs in a bridged domain.
Unidirectional Link Detection (UDLD)
UDLD monitors physical connection to detect unidirectional links caused by incorrect wiring or port faults to prevent forwarding loops and blackholing of traffic in switched networks
DHCP Relay at Layer 2
Relay of DHCP traffic to DHCP server in a different VLAN. Works with DHCP Option 82.
IGMP (versions 1, 2, and 3)
snooping
Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 1K (1024) and 4K (for SG500X in native mode) multicast groups (source-specific multicasting is also supported).
IGMP querier
IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router.
HOL blocking
Head-of-line (HOL) blocking.
Jumbo Frames
Frames up to 9K (9216) bytes in length.