Hi everyone, I am having problem configuring trunk port with several DHCP servers. I've tried configuring it by creating VLAN's via 'Interface- VLANs' and configruing dhcp servers onto them, but as soon as it was enabled internet speed drastically reduced (2 core arm processor and ~ 150-200 devices) . Is it possible to created trunk port with multiple dhcp servers using switch chip or bridge vlan configuration?

Both may be possible, switch chip method depends on the hardware.

bridgevlan filtering
viewtopic.php?f=23&t=143620

Switch chip method
https://www.youtube.com/watch?v=Rj9aPoyZOPo

Both methods (bridge vlan and switch chip vlan) only matter in switched/bridged environment which is when multiple ports are members of same vlans (or subset of thereof) and pat of traffic simply passes router/switch between these ports (almost) unaltered.
When only single port is carrying all vlans (as in case of inter-vlan router), then all traffic is handled by device's CPU which easily becomes a bottleneck. How narrow the bottleneck is depends on model of particular device and usage pattern.

So if you want some problem analysis and suggestions, describe your use case in some more details and post device's configueation (execute /export hide-sensitive file=anynameyouwish, fetch the resulting file, ooen it with text editor and copy-paste it here - put it inside [code] [/code] block).

We run our CCRs1072 this way, we have all VLANs configured (via the Bridge) and run on the adjacent VLAN-Interfaces the DHCP-Servers.
We run everything this way, OSPF, Multicast/PIM-routing... It works great!

The CCRs have no Switch-Chip, but to be honest, the Switch-Chip-VLAN handling is a pain. Id always recommend the bridge-way.
I have spend days of trial-and-error configuring the Switch-Chip-VLAN like the Bridge-VLAN, but I failed always.