Cisco 4948 Series Gegevensblad - Pagina 4

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Port Aggregation Protocol (PAgP)

Unidirectional Link Detection Protocol (UDLD) and aggressive UDLD on the SFP ports

Q-in-Q in hardware

Layer 2 protocol tunneling

Jumbo frames on all ports (up to 9216 bytes)

Baby giants (up to 1600 bytes)

Hardware-based storm control (formally known as broadcast and multicast suppression)

Community private VLANs (PVLANs)

Forced 10/100 autonegotiation

Web Content Communication Protocol Version 2 Layer 2 Redirect

Private VLAN Promiscuous Trunk

Layer 3 Features

Hardware-based IP Cisco Express Forwarding routing at 72 Mpps

Static IP routing

IP routing protocols: EIGRP, OSPF, RIP, RIP2

BGPv4 and Multicast Border Gateway Protocol (MBGP)

Hot Standby Router Protocol (HSRP)

Software routing of IPX and AppleTalk

IS-IS routing protocol

IGMPv1, v2, and v3

IGMP filtering on access and trunk ports

IP Multicast routing protocols (Protocol Independent Multicast [PIM], Source Specific Multicast [S SM], and Distance Vector

Multicast Routing Protocol [DVMRP])

Pragmatic General Multicast (PGM)

Cisco Group Management Protocol (GMP) server

Full Internet Control Message Protocol (ICMP) support

ICMP Router Discovery Protocol

Policy-based routing (PBR)

Virtual Route Forwarding-lite (VRF-lite)

IPv6 software switching support

OSPF fast convergence

EIGRP stub

Virtual Router Redundancy Protocol (VRRP)

Sophisticated QoS and Traffic Management

Per-port QoS configuration

Per-port per VLAN QoS

Support for four queues per port in hardware

Strict priority queuing

IP differentiated services code point (DSCP) and IP Precedence

Classification and marking based on IP type of service (ToS) or DSCP

Classification and marking based on full Layer 3 and 4 headers (IP only)

Input and output policing based on Layer 3 and 4 headers (IP only)

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