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Scalable and predictable system performance: Provide a selection of switch fabric
●
connections and throughput options: 32 Gbps, 256 Gbps and 720 Gbps bandwidth with
system throughput of: 15 Mpps, 30 Mpps, 210 Mpps and up to 400 Mpps
Operational consistency: Configurations available for Catalyst 6500 3-, 6-, 9-, and 13-slot
●
chassis running Cisco IOS
interoperable with all other interfaces and services modules; and forward-compatible with all
Catalyst 6500 supervisor engines
Maximum network uptime and resiliency: Support Cisco enhanced Per-Virtual LAN (VLAN)
●
Spanning Tree Plus (PVST+) protocol, IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
and IEEE 802.1s Multiple Spanning Tree (MST) protocol, Per-VLAN Rapid Spanning Tree
(PVRST) protocol, Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol
(VRRP), Gateway Load Balancing Protocol (GLBP), Cisco EtherChannel
link aggregation for fault-tolerant connectivity
Superior traffic management: Available with large per-interface buffers and multiple-priority
●
queues for traffic prioritization and policing, allowing for tight service-level agreement (SLA)
enforcement
Extensive management tools: Support CiscoWorks network management platform, Simple
●
Network Management Protocol (SNMP) versions 1, 2, and 3 and four RMON groups
(statistics, history, alarms, and events)
Gigabit Ethernet Applications and Key Features
Cisco Catalyst 6500 series mixed media/fiber-based gigabit Ethernet interface modules are used in
distribution and core layers, data-center and Metro Ethernet applications. These gigabit Ethernet
interface modules deliver wire-speed switched connectivity and support several switch fabric
connections and traffic forwarding options, these include: Classic, CEF256, dCEF256 and CEF720.
With a range of port densities and modular physical layer interfaces, these modules also offer a
choice of packet buffer depths for traffic shaping, and QoS granularity with varying number of queues
and drop threshold options. These key features are important aspects to in determining best module
for a given network application (Table 1).
Table 1.
Cisco Catalyst 6500 Series Gigabit Interface Module Applications and Key Features
Primary
Product Number
Applications
High Performance
WS-X6748-SFP
Distribution, Core
Layer and Data
Center
High Performance
WS-X6724-SFP
Distribution, Core
Layer and Data
Center
Data Center and
WS-X6816-GBIC
Server Farm
Data Center and
WS-X6516A-
Server Farm
GBIC
Base Server Farm
WS-X6516-GBIC*
®
Software and Cisco Catalyst Operating System Software;
Interface
Ports/Optics
Queues per Port
Module
Interface Type
(Tx = Transmit,
Class
Rx = Receive)*
CEF720
48, SFP
● Tx-1p3q8T
● Rx-1q8T
CEF720
24, SFP
● Tx-1p3q8T
● Rx-1q8T
dCEF256
16, GBIC
● Tx-1p2q2t
● Rx-1p1q4t
● Tx-1p2q2t
CEF256
16, GBIC
● Rx-1p1q4t
CEF256
16, GBIC
● Tx-1p2q2t
● Rx-1p1q4t
Data Sheet
®
, and IEEE 802.3ad
Scheduler
Buffer Size
per Port
Deficit
● Rx-166KB
Weighted
● Tx-1.17MB
Round
(2q8T when
Robin
using dCEF)
(DWRR)
DWRR
● Rx-166KB
● Tx-1.17MB
(2q8T when
using dCEF)
Weighted
512 KB
Round
Robin
(WRR)
WRR
1 MB
WRR
512 KB
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