User guide

Open Problem Reports and Feature Exceptions
OmniSwitch 6600/7000/8800—Release 5.1.6.R02 page 79
PR 84592
In certain cases, frames are duplicated with UDP Relay on an OS7000 series switch.
Workaround:
1. With VRRP, enabling only on one VRRP router (either master or backup) is desirable for any UDP
relay service to avoid UDP frames being duplicated.
2. If there are ECMP routes, enabling on one backbone VLAN is desirable for any UDP relay service.
3. If 802.1Q is configured on multiple switches, UDP relay service only needs to be enabled on one
switch.
PR 88860
The DHCP forward delay range is incorrect.
Workaround: There is no known workaround at this time.
VRRP
Problem Reports
PR 61934
An OS7000 series switch does not support VRID 0. OmniCore does.
Workaround: Do not use VRID 0 on other OmniCore devices when running VRRP with an OS7000
series switch.
PR 62272
Exceeding the multicast software routing processing limits can introduce instability to the VRRP master to
backup communications resulting in VRRP switching between master and backup states frequently on an
OS7000 series switch.
Workaround: Reduce the amount of IP multicast traffic running through the affected NI.
PR 68342
VRRP neighbors may switch between master and backup when more than 20 virtual routers are on an
OS7000 series switch.
Workaround: One must have OS7-GNI-U2’s with a 1.3 Catalina or greater. The version of the Catalina
for a Gigabit module is determined by running the command show ni <slot>. In the line "ASIC-Physi-
cal", the last two values represent the version of the Catalina, i.e.
ASIC - Physical: 0x1901 0x0201 0x0201
The version number should be greater than 0x0301