Ping to NSX-T Edge Nodes TEP IPs or T0/T1 SR IPs over 2020 bytes is failing
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Ping to NSX-T Edge Nodes TEP IPs or T0/T1 SR IPs over 2020 bytes is failing

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Article ID: 326344

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Updated On:

Products

VMware NSX Networking

Issue/Introduction

Symptoms:
  • Ping to an Edge Node TEP IP over 2020 bytes is failing.
For example, pinging from the TEP of a Transport Node to the Edge TEP IP:
#ping ++netstack=vxlan -I vmk10 -d -s 2021 {edge-TEP-IP}
PING 192.168.131.13 (192.168.131.13): 2021 data bytes
 
  • Ping to a T0/T1 SR IP over 2020 bytes is failing.
For example, pinging from a Windows machine to the T0 SR uplink IP:
#ping {T0-SR-IP} -f -l 2021
Request timed out.
 
  • Ping from an Edge Node TEP IP over 2020 bytes is working.
For example, pinging from the Edge Node vrf 0 to a Transport Node TEP IP:
#ping {TN-TEP-IP} dfbit ENABLE size 8000
8008 bytes from 192.168.141.11: icmp_seq=0 ttl=63 time=8.699 ms
 
  • Ping from a T0/T1 SR IP over 2020 bytes is working.
For example, pinging from a T0 SR vrf to a Windows machine:
#ping {Windows-IP} dfbit ENABLE size 3000
3008 bytes from 192.168.132.138: icmp_seq=0 ttl=128 time=6.292 ms
 
  • Ping to a T0/T1 DR IP over 2020 bytes is not affected.
 
  • Pass-through traffic over 2020 bytes is not affected.


Environment

VMware NSX-T
VMware NSX-T Data Center 2.x
VMware NSX-T Data Center

Cause

Currently the NSX Edge Node and associated T0/T1 SRs cannot generate ICMP responses when the ICMP request is larger than 2020 bytes.

Resolution

Currently there is no resolution.

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