Connecting two Nexus 5020 with 10G ISL link
Hi Experts,
I am trying to connect two nexus 5020 with a 10G ISL link.
Per my understanding, with new release 5.0.3 N2(2a) ISL link between two nexus switch is supported.
Following is my config
c5020-1(config)# show running-config int vfc 32
!Command: show running-config interface vfc32
!Time: Fri Dec 2 01:14:38 2011
version 5.0(3)N2(2a)
interface vfc32
bind interface Ethernet1/32
switchport mode E
switchport trunk allowed vsan 3040
no shutdown
c5020-1(config)#
c5020-1(config)# sho running-config int eth1/32
!Command: show running-config interface Ethernet1/32
!Time: Fri Dec 2 01:16:15 2011
version 5.0(3)N2(2a)
interface Ethernet1/32
switchport mode trunk
spanning-tree port type edge trunk
c5020-1(config)#
I have similar config on the other switch. But for some reason the link does not come up. vfc port keep "initializing" and Eth port stays isolated.
c5020-1(config)# sh int vfc32
vfc32 is trunking (Not all VSANs UP on the trunk)
Bound interface is Ethernet1/32
Hardware is Virtual Fibre Channel
Port WWN is 20:1f:00:0d:ec:ca:04:bf
Admin port mode is E, trunk mode is on
snmp link state traps are enabled
Port mode is TE
Port vsan is 3040
Trunk vsans (admin allowed and active) (3040)
Trunk vsans (up) ()
Trunk vsans (isolated) ()
Trunk vsans (initializing) (3040)
1 minute input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec
1 minute output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec
0 frames input, 0 bytes
0 discards, 0 errors
0 frames output, 0 bytes
0 discards, 0 errors
last clearing of "show interface" counters never
Interface last changed at Fri Dec 2 01:17:28 2011
c5020-1(config)#
c5020-1(config)# sh int eth1/32 fcoe
Ethernet1/32 is FCoE Isolated
c5020-1(config)#
If any expert throw some light to make me understand things better will be helpful.
i have not connected two Nexus before but looking at your eth 1/32 interfaces ..do you think it needs to be "
switchport trunk allowed vlan" your "FCOE" VLAN ?
Similar Messages
-
Connecting two Nexus switches with link
Hi,
I would like to connect two nexus switches with a link. Like one c5020 and one c5548p. How do i need to configure the ports at both the switches which will be joined with a fiber cable.
For MDS switches such links becomes E-port and fabric is merged. Not sure what happenes at the Nexus swictches. Any input will be appreciated.
Thanks,Do you have fc modules in each nexus? If so, they act much like the MDS 9148. All ports should be default auto speed and auto switchport mode. Insert fc-sfp's and a regular multimode fc cable between them. Default mode is fc switch.
If that doesn't work, configure the mode on each port as E.
Once done, the fc switch portion of each nexus will merge.
Dave -
Unicast Flooding on Nexus 5020 with ESXi 5 vMotion
We recently began testing VMware ESXi 5.0 on our production network. After observing some heavy discards (3-10 million at times) on the 10G uplinks FROM our core 6509s TO the Nexus 5Ks we began some investigation. We started by capturing traffic on vPCs from the Nexus 5K to the 6509s. We found a tremendous amount of unicast vMotion traffic transmitting from the 6509s to the Nexus 5Ks. Unicast vMotion traffic should never touch the 6509s core switches since it is layer two traffic. We found that our problem was two fold. Problem number one was the fact that on the ESXi 5 test cluster we had vMotion and the management vm kernel nics in the same subnet. This is a known issue in which ESXi replies back using the management virtual mac address instead of the vMotion virtual mac address. Therefore the switch never learns the vMotion virtual mac address thus flooding all of the vMotion traffic. We fixed problem number 1 by creating a new subnet for the vMotion vm kernel nics and we also created a new isolated vlan across the Nexus 5Ks that does not extend to the cores, modifying the vDistributed switch port group as necessary. To verify that the vMotion traffic was no longer flooding we captured traffic locally on the N5K, not using SPAN but simply eves dropping on the vMotion VLAN as an access port. The testing procedure involved watching the CAM table on the 5K, waiting for the vMotion mac addresses to age out then starting a vMotion from one host to another. Doing this process we were able to consistently capture flooded vMotion traffic onto our spectator host doing the captures. The difference from problem 1 was that the flooding did not include all of the vMotion conversation as before but when vMotioning 1-2 servers we saw anywhere from 10ms to 1 full second of flooding then it would stop. The amount of flooding varied but greatly depended on whether the traffic traversed the vPC between the 5Ks or not. We were able to make the flooding much worse by forcing the traffic across the vPC between the N5Ks.
Has anyone else observed this behavior with N5Ks or VMware on another switching platform?
We were able to eliminate the vMotion flooding by pinging both vMotion hosts before beginning the vMotion. It seems that if VMware would setup a ping to verify connectivity between the vMotion hosts before starting the vMotion it would eliminate the flooding.
A brief description of the network..
Two 6509 core switches with layer 2 down to two Nexus 5020 running NX-OS version 5.0(3)N2(2b) using 2232PP FEX for top-of-rack. For testing purposes each ESXi host is dual-homed with one 10G link (CNA) to each N5K through the FEX. VMware is using vDistributed switch with a test port-group defined for the ESXi 5 boxes.
For curiosities sake we also observed packet captures from ESX 4.1 where we saw similar unicast flooding although it was near not as many packets as in ESXi 5.
We have a case open with TAC and VMware to track down the issue but were curious if anyone else has observed similar behavior or had any thoughts.
Thanks
CodyEssentially the fix was to (a) turn off mac aging on the vmotion vlan on the 5K, (b) remove the L3 addressing from the vmotion vlan by not extending it to the 6K, and for good measure we (c) dedicated 2x10G ports per server just for multi-nic vmotion. These three measures did the trick.
-
Could connect two Nexus 5648 to a stack of Catalyst 3750?
Good Morning,
Can I connect a two Nexus 5600 (switchs distribution) with switch Catalyst 3750 (switch access)?
I have tried to integrate the Nexus switch in the network as switch distribution, replacing a Catalyst 6500 switch and does not work. Everything is going very slow. Although all the ping function properly.
Is there any incompatibility connect two nexus 5648 to a stack of Catalyst 3750 by VPC?
Thank you.
Greetings.Hi,
There can be many reasons for the switches not joining the stack like SDM template mismatch.
You may go through the following document:
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/troubleshooting/switch_stacks.html#wp40112
Thanks
Ankur
"Please rate the post if found useful" -
When I click on a link attached to an email in incredimail it has started opening two firefox browsers with the exact link. I have to always close one of the browers.
See:
* https://support.mozilla.com/kb/How+to+make+Firefox+the+default+browser
* http://kb.mozillazine.org/Default_browser -
Is possible to connect two i-phone4 with bluetooth?
Is possible to connect two i-phone4 with bluetooth?
For what reason. Some apps were made to interact with another iPhone with the same app running over bluetooth.
All info is in the manual if you mean for other reasons.
http://manuals.apple.com -
With MacBooks Retina 13" can you connect two external monitors with resolution each 2560x1600?
I'm not talking about Thunderbolt displays, but other brands like ASUS, LG, SAMSUNG, etc.
Has anyone tested?You can connect two displays to the two Thunderbolt ports with appropriate Mini DisplayPort cables or adapters.
<http://www.apple.com/macbook-pro/specs-retina/>
"Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays"
If the display supports HDMI, you could connect one to the computer's HDMI port, but not at 60Hz.
"Support for 3840-by-2160 resolution at 30Hz" -
Why connect two dhcp servers with different IP addresses?
so for an assignment at college we had to configure a router connected to two switches which both had a server connected to them.
the computers were connected via dhcp to either server however each side had a different IP. we have now been asked to justify as to why two servers were used with different IP which I cannot quite produce a business orientated answer.
I can understand connecting two dchp servers on same IP to increase fault tolerance but I do not understand using two separate IP addresses.Hi,
Does “using two separate IP addresses“ mean 2 subnets which are connected by router?
If you have separately configured 2 DHCP servers on the 2 subnets, and want 1 of the 2 DHCP servers to provide fault tolerance for the other. You need to use an RFC 1542–compliant router, or DHCP relay agent, in order to forward DHCP broadcast traffic.
If there is any misunderstanding about your question, please correct.
Best Regards,
Eve Wang
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected] -
Connecting the nexus 5500 with multiple vsans
Hi,
it's my first experience in the fibre channel world and i have a few doubts about the best way to connect the nexus 5500 to a EMC storage.
This is my scenario
this is my configuration:
vsan database
vsan 2
vsan 2 interface fc 1/1
vsan 3
vsan 3 interface fc 1/2
interface fc1/1
switchport mode f
no shut
interface fc1/2
switchport mode f
no shut
now I don't know how can I connect the port fc1/3 to the vnx storage, I think I can't make a trunk like ethernet, can anyone help me?
Or i only can do this with zoning
Thanks
FredHello Fred,
All interfaces must be in the same vsan for them to see each other
vsan database
vsan 2 interface fc1/1, fc1/2, fc1/3
exit
Then you can zone each separately
example:
zone name host1 vsan 2
member pwwn 11:11:11:11:11:11:11:11 (host1 pwwn)
member pwwn 33:33:33:33:33:33:33:33 (VNX)
zone name host2 vsan 2
member pwwn 22:22:22:22:22:22:22:22 (host2 pwwn)
member pwwn 33:33:33:33:33:33:33:33 (VNX)
zoneset name Zoneset1 vsan 2
mem host1
mem host2
zoneset activate name Zoneset1 vsan 2
Thanks -
Connect two ECC systems with one SAP CRM 7.0
Hi Gurus!
I have to do a customizing for connect two ECC 6.0 and one SAP CRM 7.0, only I need the organizational structure from both systems and they need update when the structure from CRM has changes. The business partner goes to ECCs system by PI interfaces.
Both organization models are different, so I have to maintain and update depending the changes in the business.
But I don't know if this is possible, I don't know if we can do this by Middleware, ALE or PI.
Can you please, give your oppinion about this topic?
Best regards,
Eugenia.-Hi Eugenia,
Please see note 1084315 which descriibes the the multiple backend scenario.
This should be relevant here.
Best regards
Christophe -
Two Nexus 5020 vPC etherchannel with Two Catalyst 6500 VSS
Hi,
we are fighting with an 40 Gbps etherchannel between 2 Nx 5000 and 2 Catalyst 6500 but the etherchannel never comes up. Here is the config:
NK5-1
interface port-channel30
description Trunk hacia VSS 6500
switchport mode trunk
vpc 30
switchport trunk allowed vlan 50-54
speed 10000
interface Ethernet1/3
switchport mode trunk
switchport trunk allowed vlan 50-54
beacon
channel-group 30
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan 50-54
channel-group 30
NK5-2
interface port-channel30
description Trunk hacia VSS 6500
switchport mode trunk
vpc 30
switchport trunk allowed vlan 50-54
speed 10000
interface Ethernet1/3
switchport mode trunk
switchport trunk allowed vlan 50-54
beacon
channel-group 30
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan 50-54
beacon
channel-group 30
Catalyst 6500 VSS
interface Port-channel30
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
interface TenGigabitEthernet2/1/2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
interface TenGigabitEthernet2/1/3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
interface TenGigabitEthernet1/1/2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
interface TenGigabitEthernet1/1/3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
The "Show vpc 30" is as follows
N5K-2# sh vpc 30
vPC status
id Port Status Consistency Reason Active vlans
30 Po30 down* success success -
But the "Show vpc Consistency-parameters vpc 30" is
N5K-2# sh vpc consistency-parameters vpc 30
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
Shut Lan 1 No No
STP Port Type 1 Default Default
STP Port Guard 1 None None
STP MST Simulate PVST 1 Default Default
mode 1 on -
Speed 1 10 Gb/s -
Duplex 1 full -
Port Mode 1 trunk -
Native Vlan 1 1 -
MTU 1 1500 -
Allowed VLANs - 50-54 50-54
Local suspended VLANs - - -
We will apreciate any advice,
Thank you very much for your time...
JoseHi Lucien,
here is the "show vpc brief"
N5K-2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 5
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status: success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 2
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
id Port Status Active vlans
1 Po5 up 50-54
vPC status
id Port Status Consistency Reason Active vlans
30 Po30 down* success success -
31 Po31 down* failed Consistency Check Not -
Performed
*************************************************************************+
*************************************************************************+
N5K-1# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 5
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status: success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 2
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
id Port Status Active vlans
1 Po5 up 50-54
vPC status
id Port Status Consistency Reason Active vlans
30 Po30 down* failed Consistency Check Not -
Performed
31 Po31 down* failed Consistency Check Not -
Performed
I have changed the lacp on both devices to active:
On Nexus N5K-1/-2
interface Ethernet1/3
switchport mode trunk
switchport trunk allowed vlan 50-54
channel-group 30 mode active
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan 50-54
channel-group 30 mode active
On Catalyst 6500
interface TenGigabitEthernet2/1/2-3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
switchport mode trunk
channel-protocol lacp
channel-group 30 mode active
interface TenGigabitEthernet1/1/2-3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
switchport mode trunk
channel-protocol lacp
channel-group 30 mode active
Thanks for your time.
Jose -
Connecting 4 Nexus 2000 with Nexus 7000
Hi ,
I have two N7K-F248XP-25 going to be installed in one Nexus 7009 and I have 4 N2K-C2248TP-1GE (48x100/1000-T+4x10GE) .
In simple way, I have two F2 line cards within one N7K and 4 N2Ks. The N7K will be used as a parent switch and it has NX-OS version 6.0
So I want to connect the 4 N2K to the two F2 line cards in a redundant fasion, can some one tell me the best practice of how to connect those N2Ks?
I have read somewhere that I can only use two ports from each 4 shared ports but I am not sure if this is true. I will appreciate any input or a link.
ThanksThat was Awesome link! Thanks indeed.
So can you please confirm if I am following the F2 + FEX rule
Again, I have only one Nexus 7009 and 4 x N2K , so I have two F2 cards on the Nexust 7009. Here is my connectivity plan:
1st N2K to port 1 on the first F2
1st N2K to port 1 on the second F2
2nd N2K to port 2 on the first F2
2nd N2K to port 2 on the second F2
3rd N2K to port 3 on the first F2
3rd N2K to port 3 on the second F2
4rth N2K to port 4 on the first F2
4rth N2K to port 4 on the second F2
So eventually , I am planning to use one group (4 ports) on each F2 card for all the connectivity to those N2K Switches.
Also, I will have a total of 4 port channels .. right ? 1 Port channel for each N2K
I will appreciate your feedback! -
Connecting two Acer monitors with VGA and DVI output to my Macbook Pro (mid 2010)
Hi All,
I need to connect 2 Acer monitors that have both VGA and DVI ports to my MacBook Pro. What's the best way to do that?
Thanks for your help!hey! Thats normal for notebook! That actually happens to almost all of us - as there are a small fraction of people with two and more thunderbolt displays or with newest rMBP and external multi-monitor setup.
-
ODBC Connection Pooling not working with 10g On Windows 2003
I have a bog standard Windows 2003 machine and installed Oracle 10g on it. It seems that the ODBC Connection pooling is not working.
I am using ASP and every time I try and render a simple page it is taking 4-5 seconds which is the time necessaru to create a database connection. ( Machine is 2.8 Ghz Xeon with 2 gigs of Ram)
The following VB Code can be used to test that the pooling is not working. It creates 2 connections to the database. On oracle 10g on windows 2003, it takes 5 seconds to create the first connection, and another 5 seconds to create the second connection.
When you run the same program on windows 2000 and oracle 9, the first connection take 3 seconds, and the second 0.05 seconds. ( The shorter time being due to the connection pooling)
time1=timer()
set conn=createobject("adodb.connection")
Conn.Open "dsn=oracleDSN;uid=yourusername;pwd=yourpassword"
time2=timer()
msgbox time2-time1
conn.close
set conn=nothing
time1=timer()
set conn=createobject("adodb.connection")
Conn.Open "dsn=oracleDSN;uid=yourusername;pwd=yourpassword"
time2=timer()
msgbox time2-time1
conn.closeODBC Connection Pooling is controlled by the ODBC Driver Manager and defaults to off for every driver on every platform. Have you enabled connection pooling for your driver in the ODBC Data Source Administrator?
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC -
Connecting two business locations with VPN
I'm attempting to establish a connection between two offices of a business. The first office has the VPN configured on 10.4 server, and allows external clients to connect without any problems. The only drawback is that only one connection can be established from the new location at a time, given that all clients share the same external IP (I'm fairly sure this is the reason). What I am wondering is:
Can one computer (either client or server) at the new office connect to the VPN at the first office, and then share that connection with all the clients on it's sub-net?
This would be an ideal solution for us, but I've not found anything alluding to this type of connection anywhere else in the Apple discussions pages.
Many thanks, hopefully...OK, after a lot more searching I discovered that what I want is S2S VPN and have now found all the instructions needed to get it going. It always easier once you know what it's called!
Maybe you are looking for
-
Can't make font bold, shortcut stopped working
In the last week or so a few of our users have no longer been able to use the keyboard shortcut to make some fonts bold even though you can go select the bold from the type menu so obviously the bold version is installed and active. After talking wit
-
Alarm not working (5.0.1)
On my 4S, since the 5.0.1 update, if I am listening to sounds in Ambience (3.3.3) when a scheduled alarm occurs then no sound is played. Not only does the alarm sound not play but the audio from Ambience also stops. This occurs 100% of the time that
-
Contact Synchronization - Client-Based Groupware Integration - SAP Library
To add a comment, please log in or register on the top of this page and choose Reply. Please write your comment in English. You can also go back to the SAP help page.
-
Photoshop CC – Where can I find "Generate/web assets"?
On MAX there was a demonstration of a new comman to be found unter menu "File/Generate/Web-Assets? Am I blind? Where can I find this command?
-
I no longer use Windows 2012 Essentials, can I sell my copy?
I no longer use and uninstalled my copy of 2012 Windows Server Essentials from my home server, just overkill for a home server. I would like to know if it's possible to sell my copy of the software with key. Thanks, John