09-06-2011 09:22 AM - edited 03-07-2019 02:04 AM
I am trunking 6509 WS-SUP32-10GE-3B's link interface
Gi5/3 connected trunk a-full a-1000 10/100/1000BaseT
with nexus 7000 (N7K-M148GT-11) interface ethernet 2/48
Eth2/48 *** Trunk com 6509 connected trunk full 1000 10/100/1000
By now, NX7000 is working as a switch.
I have configured 2 NX2000 as interfaces of NX7000.
Each NX2000 has a host on port 1/1. Each host is in a different vlan.
As 6509 is, by now, routing I must set a default gateway to NX7000 even though hosts can't exchange info.
Question: how can I set a default gateway to NX7000 ?
Thanks
Rosa
Solved! Go to Solution.
09-07-2011 10:50 AM
You are using a Unix machine to route between these networks? Make sure you have routing enabled, if not, your N7K will not be able to ping via the management interfaces.
Regards,
jerry
09-07-2011 11:38 AM
Okay, if you are inside the N7K via the management interface traffic will go to your host if you have SVI on the N7K. However, in your case, your N7K is L2 and SVI/L3 is handle by 6500. This way, you only possible L3 connectivity is via management. To make this to work, your Linux machine needs to route the traffic, otherwise, none of the traffic will reach your test machine on VLAN 2 and VLAN 14.
To your last questions, you will not able to ping and it is expected.
Regards,
jerry
09-06-2011 09:40 AM
How about "ip default-gateway
http://www.cisco.com/en/US/docs/switches/datacenter/hw/nexus7000/cmp/configuration/guide/n7cmp.pdf
HTH
09-06-2011 09:44 AM
Reza configuring default gateway to cmp interface means that all NX7000 (including NX2000) will use the same default gateway ?
Thanks
Rosa
09-06-2011 10:01 AM
Rosa,
Yes, the 2Ks are just fabric extenders. The 7k is the parent device and should be configured.
HTH
09-06-2011 10:14 AM
Reza I have set NX7000 default gateway as 6509 route address.
Router#show running-config | i route
ip route 0.0.0.0 0.0.0.0 147.65.21.254
Smale(config)# int cmp-mgmt module 5
Smale(config-if-cmp)# ip default-gateway 147.65.21.254
Smale(config-if-cmp)# exit
Smale(config)# exit
Smale# show running-config cmp
interface cmp-mgmt module 5
ip default-gateway 147.65.21.254
from NX7000 (Smale) I can not reach NX2000 hosts
Smale# ping 147.65.2.200
PING 147.65.2.200 (147.65.2.200): 56 data bytes
ping: sendto 147.65.2.200 64 chars, No route to host
Request 0 timed out
ping: sendto 147.65.2.200 64 chars, No route to host
^C
--- 147.65.2.200 ping statistics ---
2 packets transmitted, 0 packets received, 100.00% packet loss
Smale# ping 147.65.14.100
PING 147.65.14.100 (147.65.14.100): 56 data bytes
ping: sendto 147.65.14.100 64 chars, No route to host
Request 0 timed out
ping: sendto 147.65.14.100 64 chars, No route to host
^C
--- 147.65.14.100 ping statistics ---
2 packets transmitted, 0 packets received, 100.00% packet loss
Smale#
09-06-2011 10:45 AM
Rosa,
If the 7K is functioning as a layer-2 device only, then you don't need a default route (ip route 0.0.0.0 0.0.0.0 147.65.21.254).. All you need is a default-gateway. which you have already configured.
What vlan host 147.65.2.200 is in?
Have you configured the vlan, activated and added the physical port to it?
Can you post your vlan and physical interface config?
also, is the physical interface that connects to 147.65.2.200 device is in up and up mode?
09-06-2011 11:20 AM
Detail you should know
6509 pings both IPs
Router#ping 147.65.14.100
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 147.65.14.100, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms
Router#ping 147.65.2.200
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 147.65.2.200, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/8 ms
Router#
--------------------------------------NX 7000--------------------------------------------
**** VLANs
vlan 2
name administrativa
vlan 3
name sbm
vlan 4
name pesquisadores
vlan 5
name publica
vlan 6
name visgraf
vlan 7
vlan 10
name servidores
vlan 11
name hpc
vlan 13
name alunos
vlan 14
name netadm
vlan 20
name transmissao
vlan 21
name roteadores-internos
**** ip -> 147.65.2.100
interface port-channel10
description *** Interface Nexus 2000 - Rack A5 ***
switchport mode fex-fabric
fex associate 101
interface Ethernet1/3
description *** Nexus 2000 - Rack A5 ***
no cdp enable
switchport mode fex-fabric
fex associate 101
channel-group 10
no shutdown
interface Ethernet101/1/1
switchport access vlan 2
no shutdown
**** ip -> 147.65.14.200
interface port-channel113
description *** Interface Nexus 2000 - Rack A3 ***
switchport mode fex-fabric
fex associate 113
interface Ethernet1/10
description *** Nexus 2000 - Rack A3 ***
no cdp enable
switchport mode fex-fabric
fex associate 113
channel-group 113
no shutdown
interface Ethernet113/1/10
switchport access vlan 14
no shutdown
Smale# show interface ethernet 113/1/10 status
--------------------------------------------------------------------------------
Port Name Status Vlan Duplex Speed Type
--------------------------------------------------------------------------------
Eth113/1/10 -- connected 14 full 1000 --
Smale# show interface ethernet 101/1/1 status
--------------------------------------------------------------------------------
Port Name Status Vlan Duplex Speed Type
--------------------------------------------------------------------------------
Eth101/1/1 -- connected 2 full 1000 --
Smale#
Thanks
Rosa
09-06-2011 11:29 AM
NX 7000 is quite new.
Shoul I configure a vrf ?
Rosa
09-06-2011 11:31 AM
It was possible to transfer files if both hosts were in the same Vlan.
09-06-2011 11:40 AM
Make sure both hosts have the correct default gateway configured
09-06-2011 12:03 PM
Yes they have. If not 6509 could not ping booth.
09-06-2011 02:38 PM
I think there are some confusion here:
1. I am assuming you want your host from VLAN14 to ping VLAN2? Who has the default gateways (SVIs) for VLAN 2 and VLAN 14? 6500? or N7K?
2. when you were trying to ping from the N7K? Why you mention CMP? CMP is a different physical interface on the SUP? When you issue a ping from the N7K, it will use its default VRF (meaning if you have SVI on the N7K, it will use it).
Regards,
jerry
09-07-2011 07:37 AM
Sorry, I was not clear.
This is my first condiguration using NXs (7000 + 2000).
Certainly i am doing many mistakes on this and I am not able to see all of them without help.
Let me explain what I want to do on my first step.
6509 will work as router. I has may vlans but by now let me show you only 2 i am testing:
interface Vlan2
description vlan administrativa
ip address 147.65.2.7 255.255.255.0
ip access-group 199 in
ip access-group acl102 out
ip pim sparse-mode
no ip route-cache cef
ip route-cache flow
no ip mroute-cache
interface Vlan14
description vlan netadm
ip address 147.65.14.7 255.255.255.0
ip access-group 199 in
ip access-group acl114 out
ip pim sparse-mode
no ip route-cache cef
ip route-cache flow
no ip mroute-cache
on the other hand I have a NX7000 adn 2 NX2000
--------------------------------------NX 7000--------------------------------------------
**** VLANs
vlan 2
name administrativa
vlan 3
name sbm
vlan 4
name pesquisadores
vlan 5
name publica
vlan 6
name visgraf
vlan 7
vlan 10
name servidores
vlan 11
name hpc
vlan 13
name alunos
vlan 14
name netadm
vlan 20
name transmissao
vlan 21
name roteadores-internos
**** ip -> 147.65.2.100
interface port-channel10
description *** Interface Nexus 2000 - Rack A5 ***
switchport mode fex-fabric
fex associate 101
interface Ethernet1/3
description *** Nexus 2000 - Rack A5 ***
no cdp enable
switchport mode fex-fabric
fex associate 101
channel-group 10
no shutdown
interface Ethernet101/1/1
switchport access vlan 2
no shutdown
**** ip -> 147.65.14.200
interface port-channel113
description *** Interface Nexus 2000 - Rack A3 ***
switchport mode fex-fabric
fex associate 113
interface Ethernet1/10
description *** Nexus 2000 - Rack A3 ***
no cdp enable
switchport mode fex-fabric
fex associate 113
channel-group 113
no shutdown
interface Ethernet113/1/10
switchport access vlan 14
no shutdown
Smale# show interface ethernet 113/1/10 status
--------------------------------------------------------------------------------
Port Name Status Vlan Duplex Speed Type
--------------------------------------------------------------------------------
Eth113/1/10 -- connected 14 full 1000 --
Smale# show interface ethernet 101/1/1 status
--------------------------------------------------------------------------------
Port Name Status Vlan Duplex Speed Type
--------------------------------------------------------------------------------
Eth101/1/1 -- connected 2 full 1000 --
Smale#
on Eth113/1/10 there is a host with ip 147.65.14.100 255.255.255.0 gw 147.65.14.7
on Eth101/1/10 there is a host with ip 147.65.2.200 255.255.255.0 gw 147.65.2.7
I can from 6509: ping both hosts
I can not form 7000: ping both host
I kwon there is a mistake on 7000 config. Probabily gw is not defined. But i do not know what facility I have to config. As I said evething is quite new.
When you sugested cmp I was not able to understand why but I tried.
I have been reading about vrf but I do not catch it as well.
thanks,
Rosa
09-07-2011 07:42 AM
Hi Rosa,
Your N7K is a L2 device from what you just described to me. It doens't have L3 configured and this is the reason why you can't ping.
Is your management interface connected to the network? You can intiate a ping from it if it is set up.
Regards,
jerry
09-07-2011 09:05 AM
!Command: show running-config interface mgmt0
!Time: Wed Sep 7 19:05:23 2011
version 5.1(1)
interface mgmt0
ip address 192.168.14.250/24
if I ssh to 192.168.14.250 I can not ping. Please take a look?
rosa@Morgana:~$ ssh -l netadm 192.168.14.250
User Access Verification
Password:
Last login: Wed Sep 7 19:02:28 BRDT 2011 from 192.168.14.6 on pts/0
Last login: Wed Sep 7 19:06:36 2011 from 192.168.14.6
Cisco Nexus Operating System (NX-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2010, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained in this software are
owned by other third parties and used and distributed under
license. Certain components of this software are licensed under
the GNU General Public License (GPL) version 2.0 or the GNU
Lesser General Public License (LGPL) Version 2.1. A copy of each
such license is available at
http://www.opensource.org/licenses/gpl-2.0.php and
http://www.opensource.org/licenses/lgpl-2.1.php
Smale#
Smale#
Smale# ping 147.65.14.100
PING 147.65.14.100 (147.65.14.100): 56 data bytes
ping: sendto 147.65.14.100 64 chars, No route to host
Request 0 timed out
ping: sendto 147.65.14.100 64 chars, No route to host
Request 1 timed out
ping: sendto 147.65.14.100 64 chars, No route to host
Request 2 timed out
ping: sendto 147.65.14.100 64 chars, No route to host
^C
--- 147.65.14.100 ping statistics ---
4 packets transmitted, 0 packets received, 100.00% packet loss
Smale# ping 147.65.2.200
PING 147.65.2.200 (147.65.2.200): 56 data bytes
ping: sendto 147.65.2.200 64 chars, No route to host
Request 0 timed out
ping: sendto 147.65.2.200 64 chars, No route to host
^C
--- 147.65.2.200 ping statistics ---
2 packets transmitted, 0 packets received, 100.00% packet loss
Smale#
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