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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)
●
Up to 32 groups
●
Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad LAG
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 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 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).
VLANs transparently cross over a service provider network while isolating traffic among customers.
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
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 is used to support a Layer 2 multicast domain of snooping switches in the absence of a
multicast router.
Head-of-line (HOL) blocking.
Frames up to 9K (9216) bytes in length.
Wirespeed routing of IPv4 packets
Up to 2K (2048) static routes and up to 256 IP interfaces
Wirespeed IPv6 Static
Routing
Up to 2K (2048) static routes and up to 128 IPv6 interfaces
Configuration of layer 3 interface on physical port, LAG, VLAN interface or Loopback interface
Support for Classless Inter-Domain Routing
Support for Routing Information Protocol version 2, for dynamic routing
Virtual Router Redundancy Protocol (VRRP) delivers improved availability in a Layer 3 network by
providing redundancy of the default gateway servicing hosts on the network. VRRP versions 2 and 3 are
supported. Up to 255 virtual routers are supported.
Switch functions as an IPv4 DHCP Server serving IP addresses for multiple DHCP pools/scopes
Support for DHCP options
Relay of DHCP traffic across IP domains.
User Datagram Protocol
(UDP) Relay
Relay of broadcast information across Layer 3 domains for application discovery or relaying of
BOOTP/DHCP packets.
Up to 8 units in a stack. Up to 416 ports managed as a single system with hardware failover.
Fast stack failover delivers minimal traffic loss.
Plug-and-play stacking
configuration/management
Master/backup for resilient stack control
Auto-numbering
Hot swap of units in stack
Ring and chain stacking options Auto stacking port speed Flexible stacking port options
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