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QuickSpecs
Overview
Dual internal power supply: provides high reliability
Separate data and control paths: keep control separated from services and keep service processing isolated; increase security
and performance
Passive design system: backplane has no active components for increased system reliability
IEEE 802.3ad Link Aggregation Control Protocol (LACP): supports up to 128 trunks, each with 8 links per trunk; supports static
or dynamic groups and user-selectable hashing algorithm
Intelligent Resilient Framework (IRF): creates virtual resilient switching fabrics, where two or more switches perform as a
single L2 switch and L3 router; switches do not have to be co-located and can be part of a disaster-recovery system; servers or
switches can be attached using standard LACP for automatic load balancing and high availability; can eliminate the need for
complex protocols like Spanning Tree Protocol, Equal-Cost Multipath (ECMP), or VRRP, thereby simplifying network operation
simplifies network operation by eliminating the complexity of Spanning Tree Protocol, Equal-Cost Multipath (ECMP), or VRRP
IRF capability: provides single IP address management for a resilient virtual switching fabric of up to four switches
Rapid Ring Protection Protocol (RRPP): provides standard sub-100 ms recovery for ring Ethernet-based topology
Virtual Router Redundancy Protocol (VRRP): allows a group of routers to dynamically back each other up to create highly
available routed environments
Hitless patch upgrades: allow patches and new service features to be installed without restarting the equipment, increasing
network uptime and facilitating maintenance
Graceful restart: features are fully supported, including graceful restart for OSPF, IS-IS, 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; forwarding remains uninterrupted during the switchover to achieve nonstop forwarding
(NSF)
Ultrafast protocol convergence with standards-based failure detection—Bidirectional Forwarding Detection (BFD) enables
link connectivity monitoring and reduces network convergence time for RIP, OSPF, BGP, IS-IS, VRRP, MPLS, and IRF
Smart link: allows 50 ms failover between links
IP/LDP FRR: nodes are configured with backup ports, routes, and LSPs; local implementation requires no cooperation of adjacent
devices, simplifying the deployment; solves the traditional convergence faults in IP forwarding and MPLS forwarding, protecting
the links, nodes, and paths without establishing respective backup LSPs for them; realizes restoration within 50 ms, with the
restoration time independent of the number of routes and fast link switchovers, without route convergence
Layer 2 switching
VLAN: supports up to 4,096 ports or IEEE 802.1Q-based VLANs; also 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
Bridge Protocol Data Unit (BPDU) tunneling: transmits Spanning Tree Protocol 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; supports four mirroring groups,
with an unlimited number of ports per group
Spanning Tree Protocol (STP)
fully supports standard IEEE 802.1D STP, IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) for faster convergence, and IEEE
802.1s Multiple Spanning Tree Protocol (MSTP)
Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) protocol snooping: effectively control and
manage the flooding of multicast packets in a Layer 2 network
Device Link Detection Protocol (DLDP): monitors link connectivity and shuts down ports at both ends if unidirectional traffic is
detected, preventing loops in STP-based networks
IEEE 802.1ad QinQ and Selective QinQ: increase the scalability of an Ethernet network by providing a hierarchical structure;
connect multiple LANs on a high-speed campus or metro network
Super VLAN: RFC 3069 standard, also called VLAN aggregation, is used to save IP address space
Per-VLAN Spanning Tree Plus (PVST+): allows each VLAN to build a separate spanning tree to improve link bandwidth usage in
DA - 13805 Worldwide — Version 29 — December 9, 2013
HP 7500 Switch Series
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