HP 10500 series Технічні характеристики - Сторінка 6

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Data sheet | HP 10500 Switch Series

• IEEE 802.1ad QinQ and selective QinQ

Increases the scalability of an Ethernet network by providing a hierarchical structure; connects

multiple LANs on a high-speed campus or metro network

• Per-VLAN spanning tree plus

Allows each VLAN to build a separate spanning tree to improve link bandwidth usage in

network environments with multiple VLANs

• Isolation at data link layer with private VLANs

Provides, through a two-tier VLAN structure, an additional layer of protection, simplifying

network configuration while saving VLAN resources

Layer 3 services

• Address Resolution Protocol (ARP)

Determines the MAC address of another IP host in the same subnet; supports static ARPs;

gratuitous ARP allows detection of duplicate IP addresses; proxy ARP allows normal ARP

operation between subnets or when subnets are separated by a Layer 2 network

• UDP helper

Redirects UDP broadcasts to specific IP subnets to prevent server spoofing

• Dynamic Host Configuration Protocol (DHCP)

Simplifies the management of large IP networks and supports client and server; DHCP Relay

enables DHCP operation across subnets

• Domain Name System (DNS)

Provides a distributed database that translates domain names and IP addresses, which

simplifies network design; supports client and server

Layer 3 routing

• Static IPv4 routing

Provides simple manually configured IPv4 routing

• Routing Information Protocol (RIP)

Uses a distance vector algorithm with UDP packets for route determination; supports RIPv1

and RIPv2 routing; includes loop protection

• Open shortest path first (OSPF)

Delivers faster convergence; uses this link-state routing Interior Gateway Protocol (IGP), which

supports ECMP, NSSA, and MD5 authentication for increased security and graceful restart for

faster failure recovery

• Intermediate system to intermediate system (IS-IS)

Uses a path vector IGP, which is defined by the ISO organization for IS-IS routing and extended

by IETF RFC 1195 to operate in both TCP/IP and the OSI reference model (Integrated IS-IS)

• Border Gateway Protocol 4 (BGP-4)

Delivers an implementation of the Exterior Gateway Protocol (EGP) utilizing path vectors; uses

TCP for enhanced reliability for the route discovery process; reduces bandwidth consumption

by advertising only incremental updates; supports extensive policies for increased flexibility;

scales to very large networks

• Policy-based routing

Makes routing decisions based on policies set by the network administrator

• IP performance optimization

Provides a set of tools to improve the performance of IPv4 networks; includes directed

broadcasts, customization of TCP parameters, support of ICNP error packets, and extensive

display capabilities

• Unicast Reverse Path Forwarding (uRPF)

Limits erroneous or malicious traffic in accordance with RFC 3074