3
Performance
•
Excellent forwarding performance: provides
forwarding performance from 220 Kpps to 360
Kpps; meets today's and future bandwidth-intensive
application demands for enterprise businesses
•
Powerful encryption capacity: includes
embedded hardware encryption accelerator to
improve encryption performance
•
Flexible chassis selection: offers a choice of
more than five routers and meets different
requirements on enterprise branches
Resiliency and high availability
•
Virtual Router Redundancy Protocol
(VRRP): allows groups of two routers to
dynamically back each other up to create highly
available routed environments
•
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
•
External redundant power supply: provides
high reliability
Layer 2 switching
•
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
•
IGMP and MLD snooping: effectively control
and manage the flooding of multicast packets in a
Layer 2 network
•
Port mirroring: duplicates port traffic (ingress
and egress) to a local or remote monitoring port
•
VLANs: support up to 4094 port or IEEE
802.1Q-based VLANs
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
•
User Datagram Protocol (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
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
•
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
•
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
•
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)
•
Static IPv6 routing: provides simple, manually
configured IPv6 routing
•
Dual stack: maintains separate stacks for IPv4 and
IPv6 to ease transition from an IPv4-only network to
an IPv6-only network design
•
Routing Information Protocol next
generation (RIPng): extends RIPv2 to support
IPv6 addressing
•
OSPFv3: extends OSPFv2 to support IPv6
addressing
