Solved: 6724-SFP line card port distribution

chintan-shah · ‎07-07-2008

Hi,

I understand that In the WS-X6724-SFP, a single port ASIC supports 12 local GE ports. But how is ports are distributed accross two ASIC.

IS that 1-12 - ASIC 1 , 13-24 ASIC2

OR

ODD Ports from 1-24 - ASIC 1

Even Ports from 1-24- ASIC 2.

I would like to distribut my access ports to make sure that I have ASIC level redudancy within line card.

Thanks in advance.

Regards,

Chintan.

Edison Ortiz · ‎07-13-2008

I was under impression that 24 ports module has connectivity to only 1 Fiber channel and all ports are connected to same

You are right. I was incorrect in my previous statement. I'm sorry for that. There is one single fiber channel in the 24port model (the link I posted contains such information as well). All ports are sharing the same 20Gbps connection to the backplane.

48 ports has two fiber channel and that has connectivity of odd/even ports.

The 48SFP has the odd/even port allocation. The GE-TX has the split allocation from 1-24 and 25-48.

From the link you and Jon posted:

WS-X6748-GE-TX

48-port 10/100/1000 RJ-45

â€¢CEF720 with WS-X6700-CFC (adds 0.75 A@42 V)

â€¢dCEF720 with WS-F6700-DFC3BXL (adds 3.30 A@42 V)

â€¢dCEF720 with WS-F6700-DFC3B (adds 2.70 A@42 V)

â€¢dCEF720 with WS-F6700-DFC3A (adds 3.00 A@42 V)

â€¢Supports egress multicast replication

â€¢QoS architecture:

-With DFC3: 2q8t/1p3q8t

-With CFC: 1q8t/1p3q8t

â€¢Dual switch-fabric connections

Fabric Channel #1: Ports 25-48

Fabric Channel #2: Ports 1-24

â€¢Number of ports: 48

Number of port groups: 4

Port ranges per port group: 1-12, 13-24, 25-36, 37-48

HTH,

__

Edison.

View solution in original post

Jon Marshall · ‎07-07-2008

Chintan

Best place to look for these sort of things is in release notes.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html#wp2562211

It is ports 1 - 12 and 13 - 24

Jon

Edison Ortiz · ‎07-07-2008

The link Jon provided is very useful, you can also find this information right on the switch.

Here is the output from a 6748 module.

sh int capabilities module 9 | i GigabitEthernet|Ports on ASIC

GigabitEthernet9/1

Ports on ASIC: 1-12

GigabitEthernet9/2

Ports on ASIC: 1-12

GigabitEthernet9/3

Ports on ASIC: 1-12

GigabitEthernet9/4

Ports on ASIC: 1-12

GigabitEthernet9/5

Ports on ASIC: 1-12

GigabitEthernet9/6

Ports on ASIC: 1-12

GigabitEthernet9/7

Ports on ASIC: 1-12

GigabitEthernet9/8

Ports on ASIC: 1-12

GigabitEthernet9/9

Ports on ASIC: 1-12

GigabitEthernet9/10

Ports on ASIC: 1-12

GigabitEthernet9/11

Ports on ASIC: 1-12

GigabitEthernet9/12

Ports on ASIC: 1-12

GigabitEthernet9/13

Ports on ASIC: 13-24

GigabitEthernet9/14

Ports on ASIC: 13-24

GigabitEthernet9/15

Ports on ASIC: 13-24

GigabitEthernet9/16

Ports on ASIC: 13-24

GigabitEthernet9/17

Ports on ASIC: 13-24

GigabitEthernet9/18

Ports on ASIC: 13-24

GigabitEthernet9/19

Ports on ASIC: 13-24

GigabitEthernet9/20

Ports on ASIC: 13-24

GigabitEthernet9/21

Ports on ASIC: 13-24

GigabitEthernet9/22

Ports on ASIC: 13-24

GigabitEthernet9/23

Ports on ASIC: 13-24

GigabitEthernet9/24

Ports on ASIC: 13-24

GigabitEthernet9/25

Ports on ASIC: 25-36

GigabitEthernet9/26

Ports on ASIC: 25-36

GigabitEthernet9/27

Ports on ASIC: 25-36

GigabitEthernet9/28

Ports on ASIC: 25-36

GigabitEthernet9/29

Ports on ASIC: 25-36

GigabitEthernet9/30

Ports on ASIC: 25-36

GigabitEthernet9/31

Ports on ASIC: 25-36

GigabitEthernet9/32

Ports on ASIC: 25-36

GigabitEthernet9/33

Ports on ASIC: 25-36

GigabitEthernet9/34

Ports on ASIC: 25-36

GigabitEthernet9/35

Ports on ASIC: 25-36

GigabitEthernet9/36

Ports on ASIC: 25-36

GigabitEthernet9/37

Ports on ASIC: 37-48

GigabitEthernet9/38

Ports on ASIC: 37-48

GigabitEthernet9/39

Ports on ASIC: 37-48

GigabitEthernet9/40

Ports on ASIC: 37-48

GigabitEthernet9/41

Ports on ASIC: 37-48

GigabitEthernet9/42

Ports on ASIC: 37-48

GigabitEthernet9/43

Ports on ASIC: 37-48

GigabitEthernet9/44

Ports on ASIC: 37-48

GigabitEthernet9/45

Ports on ASIC: 37-48

GigabitEthernet9/46

Ports on ASIC: 37-48

GigabitEthernet9/47

Ports on ASIC: 37-48

GigabitEthernet9/48

Ports on ASIC: 37-48

HTH,

__

Edison.

chintan-shah · ‎07-13-2008

Hi ,

Thank you all. It is really helpful information. But I was little confused that ASIC is divided in 4 , I mean per line card 4 ASIC and each consist of 12 port groups but there are two 20 Gbps fabric which has port distribution even/odd ports so What is best way distribute connection for maximum resiliency

REGARDS,

CHINTAN

Edison Ortiz · ‎07-13-2008

Place the high bandwidth demand devices on separate ASICs.

HTH,

__

Edison.

chintan-shah · ‎07-13-2008

Hi,

Thanks for suggestion and yes I have put the same in my document to seperate high devices in seperate ASIC but I was wondering on 2 fabric channel. Fabric channel is consist of all odd ports and 2nd is of all even ports so if even two devices are in two diff ASIC , Is it also worth to consider to have diff Fabric channel also ?

Let me try with example:

Device has two ports ( one active and other secondary )connection to same card as layer 2 and I want one port at port 1 and second in dffereint asic ( 13-23 any where)shall i go ehad and put at port#13 or shall I put at #14 ( second fabric channel)...

Thanks for your help.

Regards,

Chintan

Edison Ortiz · ‎07-13-2008

It's not an ODD/EVEN switchport allocation.

Please see:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd80673385.html

and refer to Figure 21.

On the 24Port module, you will have the first 12 switchports connecting to the leftmost fiber channel while the last 12 switchports in the rightmost fiber channel.

HTH,

__

Edison.

Please rate helpful posts

chintan-shah · ‎07-13-2008

Hi,

I was under impression that 24 ports module has connectivity to only 1 Fiber channel and all ports are connected to same but 48 ports has two fiber channel and that has connectivity of odd/even ports.

I could get this info from the link provided by jon : http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/OL_4164.html#wp2562211

And my question on earlier message was for 48 ports card sorry that I forgot to mention that I have both 24 port and 48 ports cards in my switch ( 24 ports is SFP) and 48 ports is GE-TX.

I really appriceate you help on this.

Regards,

Chintan.

Edison Ortiz · ‎07-13-2008

I was under impression that 24 ports module has connectivity to only 1 Fiber channel and all ports are connected to same

You are right. I was incorrect in my previous statement. I'm sorry for that. There is one single fiber channel in the 24port model (the link I posted contains such information as well). All ports are sharing the same 20Gbps connection to the backplane.

48 ports has two fiber channel and that has connectivity of odd/even ports.

The 48SFP has the odd/even port allocation. The GE-TX has the split allocation from 1-24 and 25-48.

From the link you and Jon posted:

WS-X6748-GE-TX

48-port 10/100/1000 RJ-45

â€¢CEF720 with WS-X6700-CFC (adds 0.75 A@42 V)

â€¢dCEF720 with WS-F6700-DFC3BXL (adds 3.30 A@42 V)

â€¢dCEF720 with WS-F6700-DFC3B (adds 2.70 A@42 V)

â€¢dCEF720 with WS-F6700-DFC3A (adds 3.00 A@42 V)

â€¢Supports egress multicast replication

â€¢QoS architecture:

-With DFC3: 2q8t/1p3q8t

-With CFC: 1q8t/1p3q8t

â€¢Dual switch-fabric connections

Fabric Channel #1: Ports 25-48

Fabric Channel #2: Ports 1-24

â€¢Number of ports: 48

Number of port groups: 4

Port ranges per port group: 1-12, 13-24, 25-36, 37-48

HTH,

__

Edison.

chintan-shah · ‎07-13-2008

Hi,

Thanks for confirmation and clarifying different in port allocation between 48 ports GE-TX/SFP.

I've put my rating.

Thanks agian,

Regards,

Chintan.