Nexus 5624Q - configuration does not match the port capability...

[kramsdell]

Hi,

I've got a 5624Q that I need to trunk over to a 3850 via 1G SFP fiber for external connectivity.  I was told by presales that this could be done using a CVR-QSFP-SFP10G adapter with a GLC-SX-MMD installed into it and another GLC-SX-MMD installed into then 3850.

When I try to configure the port on the 5624Q with a speed 1000, I get the configuration does not match the port capability error.

Any ideas??

s01# show int e1/5 transceiver details
Ethernet1/5
transceiver is present
type is QSA
name is CISCO-DNI
part number is CAZADERO-R
revision is 03
serial number is DTY19XXXXXX
nominal bitrate is 0 MBit/sec
cisco id is --
cisco extended id number is 155

DOM is not supported

s01# show int e1/5 capabilities
Ethernet1/5
Model: N5600-24Q-12Q-FIX
Type (SFP capable): QSA
Speed: 40000
Duplex: full
Trunk encap. type: 802.1Q
Channel: yes
Broadcast suppression: no
Flowcontrol: rx-(off/on),tx-(off/on)
Rate mode: none
QOS scheduling: rx-(6q1t),tx-(1p6q0t)
CoS rewrite: no
ToS rewrite: no
SPAN: yes
UDLD: yes
MDIX: no
Link Debounce: yes
Link Debounce Time: yes
dot1Q-tunnel mode: yes
Pvlan Trunk capable: yes
TDR capable: no
FabricPath capable: yes
Port mode: Switched
FEX Fabric: yes

s01# show int sta

--------------------------------------------------------------------------------
Port Name Status Vlan Duplex Speed Type
--------------------------------------------------------------------------------
Eth1/1 -- connected 1 full 40G QSFP-40G-SR
Eth1/2 -- connected 1 full 40G QSFP-40G-SR
Eth1/3 -- sfpAbsent 1 half 40G --
Eth1/4 -- sfpAbsent 1 half 40G --
Eth1/5 -- notconnec 1 half 40G QSA
Eth1/6 -- sfpAbsent 1 half 40G --
Eth1/7 -- sfpAbsent 1 half 40G --
Eth1/8 -- sfpAbsent 1 half 40G --
Eth1/9 -- sfpAbsent 1 half 40G --
Eth1/10 -- sfpAbsent 1 half 40G --
Eth1/11 -- connected 1 full 40G QSFP-40G-SR
Eth1/12 -- connected 1 full 40G QSFP-40G-SR
Po100 -- connected 1 full a-40G --
Po111 -- connected 1 full a-40G --
mgmt0 -- notconnec routed auto auto --
Eth100/1/1 -- connected 1 full a-10G 1G/10G

s01# conf t
Enter configuration commands, one per line. End with CNTL/Z.
s01(config)# int e1/5
s01(config-if)# speed 1000
ERROR: Ethernet1/5: Configuration does not match the port capability.

[Prabath Godevithanage]

I don't think they support 1Gig just 10/40 .Please check here for your switch,refer Table 3.Some more infor here too

[kramsdell]

Hi Preranda,

Thanks for the info.  See that's the thing, the doc you reference above, does show my situation as an acceptable solution.

Table 8.       Cisco Nexus 5600 Platform 1 and 10 Gigabit Ethernet SFP and SFP+ Transceiver Support Matrix

Cisco SFP and SFP+	Description
CVR-QSFP-SFP10G	40GBASE QSFP to SFP+ and SFP adapter (QSA) for 1 Gbps (GLC-T, SX/LH), 10G-SR/LR/ER connectivity
GLC-T	1000BASE-T standard
GLC-SX-MMD	1000BASE-SX short wavelength; with digital optical monitoring (DOM)
GLC-EX-SMD	1000BASE-EX long wavelength; with DOM
GLC-LH-SMD	1000BASE-LX/LH long wavelength; with DOM
GLC-ZX-SMD	1000BASE-ZX long wavelength; with DOM

[Prabath Godevithanage]

yes sort of misleading,there might be one or two models out 5600 platform that supports 1Gig transceivers.check the hardware support status with show interface.

the second output I've attached is a 10/40 GEM module again doesn't support 1G. There's a possibility that you may need to convert a group of ports but i highly doubt in this case.

You might want to log a TAC and get a definite answer for this

[kramsdell]

Thanks for the info.  This is what I see on the port with the sho int command;

s01# show int e1/5
Ethernet1/5 is down (Link not connected)
Dedicated Interface
Hardware: 40000 Ethernet, address: 8c60.xxxx.xxxx (bia 8c60.xxxx.xxxx)
MTU 1500 bytes, BW 40000000 Kbit,, BW 40000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is access
auto-duplex, 40 Gb/s, media type is 40G
Beacon is turned off
Input flow-control is off, output flow-control is off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
Last link flapped never
Last clearing of "show interface" counters never
0 interface resets

[kramsdell]

While waiting around for TAC to get back to me, I discovered the breakout command.

Here's what I was missing.  I needed to use the following command;

interface breakout slot 1 port 7-12 map 10g-4x

Then I was able to set the speed on the port to 1000 and insert the CVR-QSFP-SFP10G adapter with a GLC-SX-MMD without incident.

[Prabath Godevithanage]

good work..I assume you were able to establish the connectivity to your 3850 after setting to speed to 1000.

here I have N9K-M12PQ GEM which I tried set to 1Gig with the converter "CVR-QSFP-SFP10G" and " GLC-SX-MMD"  to just to test out,Had no luck with that .Seems like the architecture it bit different on what you've got there.

I'm glad you've got that going

[kramsdell]

Hi Preanda,

Yes, I got the link to come up and was able to trunk over to my 3850. 

The only unfortunate side effect is I had to waste 5 additional ports on the 5k to make this work - i.e. I had to set all 6 of the ports to 10G instead of just one. 

Not a show stopper for me since this is a lab environment, but I wouldn't be happy if I had additional FEX or other reasons to use the native 40g ports.