Datasheet

3
Resiliency and high availability
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Virtual Router Redundancy Protocol
(VRRP): allows a group of routers to dynamically
back each other up to create highly available
routed environments
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Backup Centre: functions as a part of the
management and backup function to provide
backup for interfaces on your device; delivers
reliability by switching traffic over to a backup
interface when the primary one fails
Layer 2 switching
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Spanning Tree: fully supports standard IEEE
802.1D Spanning Tree Protocol, IEEE 802.1w
Rapid Spanning Tree Protocol for faster
convergence, and IEEE 802.1s Multiple Spanning
Tree Protocol
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IGMP and MLD snooping: effectively control
and manage the flooding of multicast packets in a
Layer 2 network
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Port mirroring: duplicates port traffic (ingress
and egress) to a local or remote monitoring port
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VLANs: support IEEE 802.1Q-based VLANs
Layer 3 services
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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
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User Datagram Protocol (UDP) helper:
redirects UDP broadcasts to specific IP subnets to
prevent server spoofing
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Dynamic Host Configuration Protocol
(DHCP): simplifies the management of large IP
networks and supports client and server; DHCP
Relay enables DHCP operation across subnets
Layer 3 routing
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Static IPv4 routing: provides simple, manually
configured IPv4 routing
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Routing Information Protocol (RIP): uses a
distance vector algorithm with UDP packets for
route determination; supports RIPv1 and RIPv2
routing; includes loop protection
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OSPF: Interior Gateway Protocol (IGP) using
link-state protocol for faster convergence; supports
ECMP, NSSA, and MD5 authentication for
increased security and graceful restart for faster
failure recovery
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Border Gateway Protocol 4 (BGP-4):
Exterior Gateway Protocol (EGP) with path vector
protocol uses TCP for enhanced reliability for the
route discovery process, reduces bandwidth
consumption by advertising only incremental
updates, and supports extensive policies for
increased flexibility, as well as scales to very large
networks
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Intermediate system to intermediate
system (IS-IS): Interior Gateway Protocol (IGP)
using path-vector protocol, 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)
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Static IPv6 routing: provides simple, manually
configured IPv6 routing
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Dual stack: maintains separate stacks for IPv4
and IPv6 to ease transition from an IPv4-only
network to an IPv6-only network design
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Routing Information Protocol next
generation (RIPng): extends RIPv2 to support
IPv6 addressing
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OSPFv3: extends OSPFv2 to support IPv6
addressing
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BGP+: extends BGP-4 to support Multiprotocol
BGP (MBGP), including support for IPv6
addressing
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IS-IS for IPv6: extends IS-IS to support IPv6
addressing
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IPv6 tunneling: is an important element for the
transition from IPv4 to IPv6; allows IPv6 packets to
traverse IPv4-only networks by encapsulating the
IPv6 packet into a standard IPv4 packet; supports
manually configured, 6to4, and Intra-Site
Automatic Tunnel Addressing Protocol (ISATAP)
tunnels
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Multiprotocol Label Switching (MPLS): uses
BGP to advertise routes across Label Switching
Paths (LSPs), but uses simple labels to forward
packets from any Layer 2 or Layer 3 protocol, thus
reducing complexity and increasing performance;
supports graceful restart for reduced failure
impact; supports LSP tunneling and multilevel
stacks
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Multiprotocol Label Switching (MPLS)
Layer 3 VPN: allows Layer 3 VPNs across a
provider network; uses MP-BGP to establish private
routes for increased security; supports RFC
2547bis multiple autonomous system VPNs for
added flexibility