My Oracle Support Banner

Oracle VM: Network Packet From DomU Would Delay 30ms On Dom0 (Doc ID 2535485.1)

Last updated on JUNE 04, 2020

Applies to:

Oracle VM - Version 3.0.1 to 3.4.6 [Release OVM30 to OVM34]
Information in this document applies to any platform.

Symptoms

 Network packet from DomU would delay 30ms on Dom0 occasionally.

 For example, following shows that DomU sends a packet to Dom0 on 12:23:05:385107, but Dom0 receives and send it to NFS Server on 12:23:05.415123(delay of 30ms). 

=== DomU tcpdump report ======
12:23:05.385107 IP [DomU IP].804 > [NFS Server IP].nfs: 120 getattr fh 119,128/1601175552
12:23:05.415407 IP [NFS Server IP].nfs > [DomU IP].804: reply ok 112 getattr REG 644 ids 124/100 sz 247956

=== Dom0 tcpdump report ======
12:23:05.415123 IP [DomU IP].804 > [NFS Server IP].nfs: 120 getattr fh 119,128/1601175552
12:23:05.415383 IP [NFS Server IP].nfs > [DomU IP]: reply ok 112 getattr REG 644 ids 124/100 sz 247956

 

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.