Cisco Switches have the ability to have 2 vlans on a single port. The set port auxiliaryvlan command on CatOs and switchport voice vlan X command on IOS switches enable you to use a seperate vlan for your IP phones. > > From: "Joseph Malin" > Date: 2002/09/04 Wed PM 05:26:17 EDT > To: [EMAIL PROTECTED] > Subject: RE: VOIP and subnets [7:52688] > > 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. > *********************************************************************
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