HP 7500 Series Datasheet page 7

Data sheet | HP 7500 Switch Series
• Graceful restart
Supports graceful restart for the open-shortest path first (OSPF), IS-IS, border gateway
protocol (BGP), LDP, and RSVP; the network remains stable during the active-standby
switchover; after the switchover, the device quickly learns the network routes by
communicating with adjacent routers; and forwarding remains uninterrupted during the
switchover to achieve nonstop forwarding
• Ultrafast protocol convergence with standards-based failure detection—bidirectional
forwarding detection
Enables link connectivity monitoring and reduces network convergence time for the routing
information protocol (RIP), OSPF, BGP, IS-IS, VRRP, MPLS, and IRF
• SmartLink
Allows 50 ms failover between links
• IP/LDP FRR
Configures nodes with backup ports, routes, and LSPs; requires no cooperation of adjacent
devices for local implementation—simplifying deployment; solves the traditional convergence
faults in IP and MPLS forwarding—protecting the links, nodes, and paths without establishing
respective backup LSPs for them; and realizes restoration within 50 ms—with the restoration
time independent of the number of routes and fast link switchovers, without route
convergence
L2 switching
• VLAN
Supports up to 4,096 port-based or IEEE 802.1Q-based VLANs; and supports MAC-based
VLANs, protocol-based VLANs, and IP-subnet-based VLANs for added flexibility
• Port isolation
Increases security by isolating ports within a VLAN, while still allowing them to communicate
with other VLANs
• STP bridge protocol data unit (BPDU) tunneling
Transmits STP BPDUs transparently, allowing correct tree calculations across service
providers, WANs, or MANs
• GARP VLAN registration protocol
Allows automatic learning and dynamic assignment of VLANs
• Port mirroring
Duplicates port traffic (ingress and egress) to a local or remote monitoring port; and supports
four mirroring groups, with an unlimited number of ports per group
• STP
Supports the standard IEEE 802.1D STP, IEEE 802.1w rapid STP for faster convergence, and
IEEE 802.1s multiple STP
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