Nexus intervlan routing: unable to trace switch port

shailendra harinkhede · ‎07-18-2016

We have nexus 7000, there are multiple vlans

But I am unable to ping from 10.48.32.0/24 to 10.48.42.0/24

There is user 10.48.32.54 i am unable to trace its switch port,please advise.

Below is troubleshooting I have tried.

SW01# sh ip arp | in 10.48.32.54
10.48.32.54 00:09:11 8cdc.XXX.471c Vlan32

USIDCDISSW01# show mac address-table | include 471c
* 32 8cdc.XXX.471c dynamic 0 F F Po201

SW04# show ip arp | in 471c

SW03# show ip arp | in 471c

#####below is show output of this command where SW04 and SW03 are showing but I am unable to trace switch port of mac 8cdc.XXX.471c

cdp neighbors interface Po201 detail ############################

USIDCDISSW01# show cdp neighbors interface Po201 detail

----------------------------------------

Device ID:SW03()

System Name: SW03

Interface address(es):

IPv4 Address: 10.48.130.55

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet2/45, Port ID (outgoing port): Ethernet1/1

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.37

----------------------------------------

Device ID:SW03()

System Name: SW03

Interface address(es):

IPv4 Address: 10.48.130.55

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet9/45, Port ID (outgoing port): Ethernet2/1

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.37

----------------------------------------

Device ID:SW03()

System Name: SW03

Interface address(es):

IPv4 Address: 10.48.130.55

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet2/46, Port ID (outgoing port): Ethernet1/2

Holdtime: 129 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.37

----------------------------------------

System Name: SW03

Interface address(es):

IPv4 Address: 10.48.130.55

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet9/46, Port ID (outgoing port): Ethernet2/2

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.37

----------------------------------------

Device ID:SW04()

System Name: SW04

Interface address(es):

IPv4 Address: 10.48.130.56

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet2/47, Port ID (outgoing port): Ethernet1/1

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.38

----------------------------------------

Device ID:SW04()

System Name: SW04

Interface address(es):

IPv4 Address: 10.48.130.56

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet9/47, Port ID (outgoing port): Ethernet2/1

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.38

----------------------------------------

Device ID:SW04()

System Name: SW04

Interface address(es):

IPv4 Address: 10.48.130.56

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet2/48, Port ID (outgoing port): Ethernet1/2

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.38

----------------------------------------

Device ID:SW04()

System Name: SW04

Interface address(es):

IPv4 Address: 10.48.130.56

Platform: N5K-C5596UP, Capabilities: Switch IGMP Filtering Supports-STP-Dispute

Interface: Ethernet9/48, Port ID (outgoing port): Ethernet2/2

Holdtime: 122 sec

Version:

Cisco Nexus Operating System (NX-OS) Software, Version 6.0(2)N2(1)

Advertisement Version: 2

Native VLAN: 1

Duplex: full

MTU: 1500

Physical Location:

Mgmt address(es):

IPv4 Address: 10.48.253.38

Reza Sharifi · ‎07-18-2016

According to your output the hosts you are trying to ping are part of vlan 32. Can you post the info for that vlan?

shailendra harinkhede · ‎07-19-2016

SW01# show running-config int vlan 32

!Command: show running-config interface Vlan32
!Time: Tue Jul 19 07:19:37 2016

version 6.1(4)

interface Vlan32
ip address 10.48.32.2/24
ip router eigrp 101
ip passive-interface eigrp 101
ip policy route-map DRAP-route-map
hsrp 32
    preempt delay minimum 300
    priority 110
    timers 1 3
    ip 10.48.32.1

no shutdown
SW01# show running-config int vlan 42

!Command: show running-config interface Vlan42
!Time: Tue Jul 19 07:19:45 2016

version 6.1(4)

interface Vlan42
no ip redirects
ip address 10.48.42.2/24
no ipv6 redirects
ip router eigrp 101
ip passive-interface eigrp 101
hsrp 42
    preempt delay minimum 300
    priority 110
    timers 1 3
    ip 10.48.42.1

no shutdown