We are migrating several access switches from rundant EX4500s to a VC stack of QFX5100. Our desktop support team hasn't been able to reliably image systems since the access switch they use was migrated to the QFX. DHCP Realy for windows systems works as expected. Typically, if the system that needs to be imaged works the 1st time you try to image, thats the only time it will work. After that, its a 90% failure rate.
The only configuration change that was made on the access switch during the migration was deleteing the redundant trunk group config and configuring an aggregate interface.
Is there something else that needs to be configured for bootp to work?
The DHCP relay config on the QFX.
show configuration forwarding-options
storm-control-profiles DEFAULT {
all;
}
helpers {
traceoptions {
file RELAY;
flag all;
}
}
dhcp-relay {
forward-snooped-clients non-configured-interfaces;
server-group {
DHCP-SERVERS1 {
172.21.250.2;
172.21.250.3;
172.21.250.89;
172.21.250.194;
172.21.128.83;
}
DHCP-SERVERS2 {
172.21.250.2;
172.21.250.3;
172.21.250.194;
172.21.254.230;
172.21.254.231;
}
DHCP-SERVERS4 {
172.21.250.2;
172.21.250.194;
}
DHCP-SERVERS3 {
172.21.250.2;
172.21.250.3;
172.21.250.194;
172.21.250.89;
}
}
group RELAY1 {
active-server-group DHCP-SERVERS1;
interface irb.2;
interface irb.4;
interface irb.5;
interface irb.6;
interface irb.7;
interface irb.8;
interface irb.9;
interface irb.10;
interface irb.11;
interface irb.12;
interface irb.14;
interface irb.16;
interface irb.18;
interface irb.20;
interface irb.24;
interface irb.25;
}
group RELAY2 {
active-server-group DHCP-SERVERS2;
interface irb.268;
}
group RELAY3 {
active-server-group DHCP-SERVERS3;
interface irb.3;
}
group RELAY4 {
active-server-group DHCP-SERVERS4;
interface irb.112;
}
}