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How many printers per VLAN

fhansen82
Level 1
Level 1

Hi

At present we have two /24 printer VLAN's. I was considering the possiblity of collapsing them to a /23 (they are next to each other in third octet). Reason is because the first VLAN is always depleted, and the other has room to spare. My concerns are what effect this would have on network performance and whether broadcast traffic will overwhelm the broadcast domain.

Best regards

Frank

1 Accepted Solution

Accepted Solutions

Hi, Subnet with 512 hosts or less are the recommended to be used, you should avoid to use subnets /22 or with more valid hosts to avoid degradation of your network. 

https://supportforums.cisco.com/discussion/10593746/cisco-recommended-subnet-sizes-vlans

Also please check this link:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/8x/uc8x/netstruc.html#wp1043655

Hope it is useful :-)




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

View solution in original post

5 Replies 5

Julio E. Moisa
VIP Alumni
VIP Alumni

You could use a network /23, the broadcast will not affect your network. /24 or /23 are good practices.




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

Thank you Julio. How would I best prove/document this?

Hi, Subnet with 512 hosts or less are the recommended to be used, you should avoid to use subnets /22 or with more valid hosts to avoid degradation of your network. 

https://supportforums.cisco.com/discussion/10593746/cisco-recommended-subnet-sizes-vlans

Also please check this link:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/8x/uc8x/netstruc.html#wp1043655

Hope it is useful :-)




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<

Thank you Julio. Just as a side question. Does printers create more or less broadcast traffic/noise on a broadcast domain compared to client PC's?

Br

Frank

Hi, thanks,

The broadcast domain size should be the same but the network utilization will be less compared with traffic originated by the subnet for hosts.




>> Marcar como útil o contestado, si la respuesta resolvió la duda, esto ayuda a futuras consultas de otros miembros de la comunidad. <<