Model

Port Type

RX Queue

TX Queue

Total Buffer

RX Buffer

TX Buffer

Catalyst 6500 bits and pieces

WS-SUP720-3B

2 x GE

1P1Q4T

1P2Q2T

512 KB

80 KB

432 KB

VS-S720-10G-3C

2 x 10GE

2Q4T

1P3Q4T

191.8 MB

105 MB

88 MB

VS-S720-10G-3C

3 x 1GE

2Q4T

1P3Q4T

17.7 MB

9.6 MB

8.1 MB

VS-S2T-10G

2 x 10 Gb/s and 3 x 1 Gb/s

2Q4T 10 G port

1P7Q4T 10 G port

512 MB

not sure

CEF720 Modules

WS-X6904-40G-2T

4 x 40GE CFP modules

8Q4T

1P7Q4T

5 MB per 40G CFP

88 MB per 40G CFP

WS-X6908-10G-2T

8 x 10GE X2

8Q4T

1P7Q4T

256 MB per port

128 MB per port

128 MB per port

WS-X6816-10G-2T

4 x 10GE X2 performance

8Q4T

1P7Q4T

128 MB per port

128 MB per port

WS-X6816-10G-2T

16 x 10GE X2 oversubscribed

1p7q2t

1P7Q4T

90 MB per group

WS-X6816-10T-2T

4 x 10GbaseT performance

8Q4T

1P7Q4T

128 MB per port

128 MB per port

WS-X6816-10T-2T

16 x 10GbaseT oversubscribed

1p7q2t

1P7Q4T

90 MB per group

WS-X6848-TX-2T

48-port 1GbaseT

1p7q2t

1P7Q4T

166 KB per port

1.17 MB per port

WS-X6848-SFP-2T

48-port SFP

1p7q2t

1P7Q4T

166 KB per port

1.17 MB per port

WS-X6716-10GE-3C

16 x 10GE

8Q4T

1P7Q4T

199 MB

109 MB

90 MB

WS-X6716-10GE-3CXL

16 x 10GE

8Q4T

1P7Q4T

199 MB

109 MB

90 MB

WS-X6708-10GE-3CXL

8 x 10GE

8Q4T

1P7Q4T

199 MB

109 MB

90 MB

WS-X6708-10GE-3C

8 x 10GE

8Q4T

1P7Q4T

199 MB

109 MB

90 MB

WS-X6704-10GE

4 x 10GE

1Q8T

1P7Q8T

16 MB

2 MB

14 MB

WS-X6724-SFP

24 x GE SFP

1Q8T

1P3Q8T

1.3 MB

166 KB

1.2 MB

WS-X6748-GE-TX

48 x GE TX

1Q8T

1P3Q8T

1.3 MB

166 KB

1.2 MB

WS-X6748-SFP

48 x GE SFP

1Q8T

1P3Q8T

1.3 MB

166 KB

1.2 MB

WS-X6516-GBIC

16 x GE GBIC

1P1Q4T

1P2Q2T

512 KB

73 KB

439 KB

WS-X6516A-GBIC

16 x GE GBIC

1P1Q4T

1P2Q2T

1 MB

135 KB

946 KB

WS-X6516-GE-TX

16 x 10/100/1000

1P1Q4T

1P2Q2T

512 KB

73 KB

439 KB

WS-X6524-100FX-MM

24 x 100FX Multimode

1P1Q0T

1P3Q1T

1.1 MB

28 KB

1088 KB

WS-X6548-RJ-21

48 x 10/100

1P1Q0T

1P3Q1T

1.1 MB

28 KB

1088 KB

WS-X6548-RJ-45

48 x 10/100

1P1Q0T

1P3Q1T

1.1 MB

28 KB

1088 KB

WS-X6548-GE-TX

48 x 10/100/1000

1Q2T shared between 8 ports

1P2Q2T shared between 8 ports

1.4 MB shared between 8 ports

185 KB shared between 8 ports

1.2 MB shared between 8 ports

WS-X6548V-GE-TX

48 x 10/100/1000 with Cisco inline power

1Q2T shared between 8 ports

1P2Q2T shared between 8 ports

1.4 MB shared between 8 ports

185 KB shared between 8 ports

1.2 MB shared between 8 ports

WS-X6548-GE-45AF

48 x 10/100/1000 with 802.3af inline power

1Q2T shared between 8 ports

1P2Q2T shared between 8 ports

1.4 MB shared between 8 ports

185 KB shared between 8 ports

1.2 MB shared between 8 ports

dCEF256 Modules

WS-X6816-GBIC

16 x GE GBIC

1P1Q4T

1P2Q2T

512 KB

73 KB

439 KB

Classic Modules

WS-X6024-10FL-MT

24 x 10Base FL

1Q4T

2Q2T

64 KB

8 KB

56 KB

WS-X6148-RJ-21

48 x 10/100

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6148-RJ-21V

48 x 10/100 with Cisco inline power

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6148-21AF

48 x 10/100 with 802.3AF inline power

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6148-RJ-45

48 x 10/100

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6148-RJ-45V

48 x 10/100 with Cisco inline power

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6148-45AF

48 x 10/100 with 802.3AF inline power

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6148-GE-TX

48 x 10/100/1000 no jumbo

1Q2T shared between 8 ports

1P2Q2T shared between 8 ports

1.4 MB shared between 8 ports

185 KB shared between 8 ports

1.2 MB shared between 8 ports

WS-X6148A-GE-TX

48 x 10/100/1000 jumbo 9216

1Q2T shared between 8 ports

1p3q8t shared between 8 ports

5.5 MB per port

120 KB

5.4 MB

WS-X6148V-GE-TX

48 x 10/100/1000 with Cisco inline power

1Q2T shared between 8 ports

1P2Q2T shared between 8 ports

1.4 MB shared between 8 ports

185 KB shared between 8 ports

1.2 MB shared between 8 ports

WS-X6148-GE-45AF

48 x 10/100/1000 with 802.3AF inline power

1Q2T shared between 8 ports

1P2Q2T shared between 8 ports

1.4 MB shared between 8 ports

185 KB shared between 8 ports

1.2 MB shared between 8 ports

WS-X6224-100FX-MT

24 x 100FX

1Q4T

2Q2T

64 KB

8 KB

56 KB

WS-X6248-RJ-45

48 x 10/100

1Q4T

2Q2T

64 KB

8 KB

56 KB

WS-X6248-TEL

48 x 10/100 (RJ21)

1Q4T

2Q2T

64 KB

8 KB

56 KB

WS-X6248A-TEL

48 x 10/100 (Telco)

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6316-GE-TX

16 x 10/100/1000

1P1Q4T

1P2Q2T

512 KB

73 KB

439 KB

WS-X6324-100FX-MM

24 x 100FX

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6324-100FX-SM

24 x 100FX

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6348-RJ-45

48 x 10/100

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6348-RJ-45V

48 x 10/100 with Cisco inline power

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6348-RJ-21V

48 x 10/100 with Cisco inline power

1Q4T

2Q2T

128 KB

16 KB

112 KB

WS-X6408-GBIC

8 x GE GBIC

1P1Q4T

1P2Q2T

512 KB

80 KB

432 KB

WS-X6408A-GBIC

8 x GE GBIC

1Q4T

2Q2T

512 KB

73 KB

439 KB

WS-X6416-GE-MT

16 x 10/100/1000

1P1Q4T

1P2Q2T

512 KB

73 KB

439 KB

WS-X6416-GBIC

16 x GE GBIC

1P1Q4T

1P2Q2T

512 KB

73 KB

439 KB

Comments, suggestions, corrections to warner@ucsc.edu

Opinions herein are solely those of jim warner. The University has no opinions, and if they did, these would not be them.