[c-nsp] C6509 Fabric Switch Capacity
Chuck Church
chuckchurch at gmail.com
Wed Jan 13 09:40:26 EST 2016
Yes, it’s just that that the 6704 has fairly small buffers. The later 67xx 10GE blades had much bigger buffers. Check the data sheet, http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/product_data_sheet09186a00801dce34.html
Table 1. 16 megs versus 200 for others.
Chuck
From: cknipe at savage.za.org [mailto:cknipe at savage.za.org] On Behalf Of Chris Knipe
Sent: Wednesday, January 13, 2016 9:26 AM
To: Chuck Church <chuckchurch at gmail.com>
Cc: Alireza Soltanian <soltanian at gmail.com>; cisco-nsp <cisco-nsp at puck.nether.net>
Subject: Re: [c-nsp] C6509 Fabric Switch Capacity
Hi,
Just wanted to chip in here...
Whilst I can understand over subscription (and subsequent drops) on the WS-X6708, would the same hold true for the WS-X7604?
On Wed, Jan 13, 2016 at 3:35 PM, Chuck Church <chuckchurch at gmail.com <mailto:chuckchurch at gmail.com> > wrote:
Like others said, the ports are mapped to ASICs and ASICs mapped to
channels. Packets will drop. A useful command is 'show platform hardware
capacity'. That list peak utilizations along with when they happened. At
least it should, older SXF didn't seem to have it working right, but I think
SXH should be ok.
Chuck
-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net <mailto:cisco-nsp-bounces at puck.nether.net> ] On Behalf Of
Alireza Soltanian
Sent: Wednesday, January 13, 2016 6:55 AM
To: cisco-nsp at puck.nether.net <mailto:cisco-nsp at puck.nether.net>
Subject: [c-nsp] C6509 Fabric Switch Capacity
Hi everybody
We have C6509-E with SUP720-3BXL. Based on what I understood from Cisco
Website, in this setup we can have 40Gbps in Fabric Switch between slots.
This Fabric Switch is divided into two 20Gbps channels.
Now in one our chassis we have this setup:
Mod Ports Card Type Model Serial
No.
--- ----- -------------------------------------- ------------------
-----------
2 8 CEF720 8 port 10GE with DFC WS-X6708-10GE
-----------
3 48 CEF720 48 port 1000mb SFP WS-X6748-SFP
-----------
4 48 CEF720 48 port 1000mb SFP WS-X6748-SFP
-----------
5 2 Supervisor Engine 720 (Hot) WS-SUP720-3BXL
-----------
6 2 Supervisor Engine 720 (Active) WS-SUP720-3BXL
-----------
7 48 CEF720 48 port 1000mb SFP WS-X6748-SFP
-----------
8 8 CEF720 8 port 10GE with DFC WS-X6708-10GE
-----------
9 8 CEF720 8 port 10GE with DFC WS-X6708-10GE
-----------
Mod MAC addresses Hw Fw Sw
Status
--- ---------------------------------- ------ ------------ ------------
-------
2 0026.cbb2.3968 to 0026.cbb2.396f 2.1 12.2(18r)S1 12.2(33)SXH8 Ok
3 0026.993a.a8bc to 0026.993a.a8eb 2.3 12.2(18r)S1 12.2(33)SXH8 Ok
4 0015.c640.24f4 to 0015.c640.2523 1.5 12.2(14r)S5 12.2(33)SXH8 Ok
5 000a.b818.94f8 to 000a.b818.94fb 5.2 8.4(2) 12.2(33)SXH8 Ok
6 001b.d50d.9224 to 001b.d50d.9227 5.9 8.5(4) 12.2(33)SXH8 Ok
7 001d.70dc.a8f0 to 001d.70dc.a91f 1.14 12.2(14r)S5 12.2(33)SXH8 Ok
8 0023.0455.bd80 to 0023.0455.bd87 1.6 12.2(18r)S1 12.2(33)SXH8 Ok
9 0018.b967.2338 to 0018.b967.233f 1.3 12.2(18r)S1 12.2(33)SXH8 Ok
Mod Sub-Module Model Serial Hw
Status
---- --------------------------- ------------------ ----------- -------
-------
2 Distributed Forwarding Card WS-F6700-DFC3CXL ----------- 1.6 Ok
3 Distributed Forwarding Card WS-F6700-DFC3BXL ----------- 5.6 Ok
4 Distributed Forwarding Card WS-F6700-DFC3BXL ----------- 5.3 Ok
5 Policy Feature Card 3 WS-F6K-PFC3BXL ----------- 1.8 Ok
5 MSFC3 Daughterboard WS-SUP720 ----------- 2.5 Ok
6 Policy Feature Card 3 WS-F6K-PFC3BXL ----------- 1.10 Ok
6 MSFC3 Daughterboard WS-SUP720 ----------- 3.5 Ok
7 Distributed Forwarding Card WS-F6700-DFC3BXL ----------- 5.3 Ok
8 Distributed Forwarding Card WS-F6700-DFC3CXL ----------- 1.0 Ok
9 Distributed Forwarding Card WS-F6700-DFC3CXL ----------- 1.0 Ok
This output shows the Fabric Switch Utilization on each Slot:
show fabric utilization
slot channel speed Ingress % Egress %
2 0 20G 11 55
2 1 20G 16 13
3 0 20G 3 7
3 1 20G 1 2
4 0 20G 15 2
4 1 20G 17 3
5 0 20G 0 0
6 0 20G 0 0
7 0 20G 17 2
7 1 20G 15 2
8 0 20G 13 53
8 1 20G 35 59
9 0 20G 32 19
My questions are is What will happen if we exceed capacity(Egress or
Ingress) in Channel#0 of Slot#2? Will device use Capacity of Channel#1?
Thank you
Alireza
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--
Regards,
Chris Knipe
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