Cisco WS-X6516A-GBIC - Syst. CATALYST 6500 16PORT GIGE MOD Datasheet - Page 4
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Gigabit Ethernet Interface Module Switch Fabric and Forwarding Characteristics
The Cisco Catalyst 6500 Classic, CEF256, dCEF256 and CEF720 interface modules provide Gigabit
Ethernet with a choice of speeds and forwarding rates.
Feature
WS-X6416-GBIC,
WS-X6408A-GBIC
Supervisor
● Supervisor Engine
Engine
1A
Supported
● Supervisor Engine 2
● Supervisor Engine
32
● Supervisor Engine
720
● 32 Gbps
Performance/
Forwarding
● 15 Mpps per system
Rate (Mpps)
Forwarding
Supervisor engine CPU
Engine
makes forwarding
Architecture
decision
Optional DFC
Not supported
Upgrade
Support
Backplane/
32 Gbps shared bus
Switch Fabric
connection (on
Connections
Supervisor Engine1A,
Supervisor Engine 2,
Supervisor Engine 32,
and Supervisor Engine
720)
Chassis/Slot
Any slot in any chassis
Support
Requirements
Forwarding
Supervisor engine CPU
Engine
makes forwarding
Architecture
decision
* WS-X6724-SFP achieves 26Mpps sustained per slot for modules equipped with DFC3 to support distributed
forwarding)
** WS-X6724-SFP supports a single 20-Gbps channel connection to switch fabric on Supervisor Engine 720; all
other 67xx interface modules feature dual 20-Gbps channel connections (40Gbps total) to the switch fabric
Legend: 1p2q2t = one strict priority queue, two round-robin queues, and two different thresholds
WS-X6516A-GBIC,
WS-X6816-GBIC
WS-X6516-GBIC
● Supervisor Engine
● Supervisor Engine 2,
1A
(with SFM or SFM2)
● Supervisor Engine 2
● Supervisor Engine 720
● Supervisor Engine
32
● Supervisor Engine
720
● 256 Gbps using
256 Gbps using dCEF: 24
CEF: Up to 30 Mpps
Mpps per slot for slots
per system
equipped with DFC or
DFC3 to support
● Using dCEF
distributed forwarding)
upgrade: 15 Mpps
per slot for slots
equipped with DFC
or DFC3 to support
distributed
forwarding)
● Centralized CEF
Installed dCEF using
engine located on
WS-F6K-DFC or WS-F6K-
supervisor's PFCx
DFC3
makes forwarding
decision
● Upgradeable to
dCEF switching with
optional WS-F6K-
DFC or WS-F6K-
DFC3
● Use WS-F6K-DFC
Selection of:
with Supervisor
● WS-F6K-DFC with
Engine 2 and
Supervisor Engine 2
SFM(2);
and SFM(2);
● Use WS-F6K-DFC3
● Use WS-F6K-DFC3
with Supervisor
with Supervisor Engine
Engine 720
720
Single 8 Gbps channel
Dual 8 Gbps channel
connection to switch
connection to switch fabric
fabric (on Supervisor
[on Supervisor Engine 720
Engine 720 or
or Supervisor Engine 2-
Supervisor Engine 2-
MSFC2 with Switch Fabric
MSFC2 with Switch
Module (SFM)]
Fabric Module {SFM])
and 32 Gbps shared
bus connection
Any slot in any chassis
● Any slot in any Catalyst
6500 chassis except
6513.
● Slots 9 through 13 on
6513
● Centralized CEF
Installed dCEF using WS-
engine located on
F6K-DFC or WS-F6K-
supervisor's PFCx
DFC3
makes forwarding
decision
● Upgradeable to
dCEF switching with
optional WS-F6K-
DFC or WS-F6K-
DFC3
Data Sheet
WS-X6748-SFP,
WS-X6724-SFP
Supervisor Engine 720
● 720 Gbps using CEF;
Up to 30 Mpps per
system
● Using dCEF upgrade:
up to 48 Mpps
sustained per slot for
modules equipped with
DFC3 to support
distributed forwarding*
● Centralized CEF
engine located on
supervisor's PFCx
makes forwarding
decision
● Upgradeable to dCEF
switching with optional
WS-F6700-DFC3
Use WS-F6700-DFC3 with
Supervisor Engine 720
Dual 20 Gbps (40 Gbps
total) channel connection
to switch fabric on
Supervisor Engine 720**
6503 not supported at
current time
● Centralized CEF
engine located on
supervisor's PFCx
makes forwarding
decision.
● Upgradeable to dCEF
switching with optional
WS-F6700-DFC3.
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