John, One of the advantages of most IP phones is that you only need to run one connection per office. To facilitate this, IP phones often contain a two port hub or switch (one port to for LAN and the other for a user's computer.) In this scenario, the phone is in the same VLAN as the user's PC.
As long as your network does not get too congested and especially if you have QoS capable switches, this should work fine. However, if you really want to spend time running twice as many connections and using twice as many ports, the phones and the PBX would be very happy on their own VLAN. -Joe FYI: Cisco mentions both options in: http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/avvidqos/qosph one.htm -----Original Message----- From: John Brandis [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 04, 2002 4:31 PM To: [EMAIL PROTECTED] Subject: VOIP and subnets [7:52688] Hi All, planning for my new corporate network, i have decided that the company needs 8 different networks to work efficiently, all vlans are class c's, such as 10.64.0.0 -10.64.7.254 I have planned this well, and have a plan to fit into my OSPF design. Today, just found out, that my company has just purchased 500 nec ip phones and the appropriate PBX. As I have no experience with voip, could some one please tell me, if its a best design principle, to have the IP phones in subnets of there own, such as VLAN 7 & 6, are just phones, nothing else ? Thanks all John ********************************************************************** visit http://www.solution6.com UK Customers - http://www.solution6.co.uk ********************************************************************* This email message (and attachments) may contain information that is confidential to Solution 6. If you are not the intended recipient you cannot use, distribute or copy the message or attachments. In such a case, please notify the sender by return email immediately and erase all copies of the message and attachments. Opinions, conclusions and other information in this message and attachments that do not relate to the official business of Solution 6 are neither given nor endorsed by it. ********************************************************************* Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=52692&t=52688 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]