Re: VOIP and subnets [7:52688]
The difference is this: Voice over IP means just that, voice packetized to run over IP. This could be an IP phone, or an analog phone connected to an FXS port on a router, or even two voice gateways that provide toll bypass between 2 geographically seperate traditional PBX's. THe only defining characteristic is that, at some point, the voice is split up, put in IP packets and transported over an IP network. Now, IP Telephony is VoIP, but it means more than just that. Kinda like every square is a rectangle, but not all rectangles are squares. IP Telephony means that at least one end of the conversation is terminated on an IP device, such as an IP phone. This implies that the various features common to modern phones are provided by the IP system, like hold, transfer, park, call forward, etc. VoIP does not define these services. Hope this helps. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52797t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: RE: VOIP and subnets [7:52688]
Can VOIP work with the CAT5505's? I checked my switch and the set port aux isn't in there. MG wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... 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. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52745t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: RE: VOIP and subnets [7:52688]
Dont confuse VOIP with AVVID/IP Telephony.. To run IP Telephony over a cat 5K, use a secondary IP address on the router interface that routes the vlan for the switch in question. You will need a DHCP server that has both primary and secondary scopes, and the primary will service the data devices and the secondary will service the phones based the dhcp-150 request coming from the phone. Larry Letterman Cisco Systems [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mark Godfrey Sent: Thursday, September 05, 2002 11:56 AM To: [EMAIL PROTECTED] Subject: Re: RE: VOIP and subnets [7:52688] Can VOIP work with the CAT5505's? I checked my switch and the set port aux isn't in there. MG wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... 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. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52749t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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=7i=52688t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52692t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VOIP and subnets [7:52688]
Joseph Malin wrote: 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. Not necessarily. At least some IP phones will do 802.1Q and put their own VoIP traffic in a different VLAN from the data traffic that the PC plugged into them generates. Regards, Marco. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52694t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VOIP and subnets [7:52688]
Joseph Malin wrote: FYI: Cisco mentions both options in: http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/avvidqos/qosphone.htm That's a good discussion. Also see the book (available in PDF) that the chapter is taken from: http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/avvidqos Another source in this discusssion is official CIPT coursebook by David Lovell: Cisco IP Telephony, ciscopress.com. On p. 383 he cuts the pie in three: * New subnet in different IP address space. * Old subnet that the existing data endsystems are using. * New subnet in the existing IP address space. According to Lovell (p. 383): Because of the IP address space concerns, as well as the requirement of separation between the voice and data networks for administrative and QoS reasons, Cisco recommends you create a new subnet [first option, I think] for the Cisco IP phones. He also discusses automatic subnet placement. I'd appreciate if someone would explain that. -- TT Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52695t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VOIP and subnets [7:52688]
Yes John, according to the design guidelines, its always healthy to have dedicated VLAN for VoIP. Regards Sandeep Singh -Original Message- From: John Brandis [mailto:[EMAIL PROTECTED]] Sent: Thursday, 5 September 2002 6:31 AM 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=7i=52697t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VOIP and subnets [7:52688]
The phones reside in an aux vlan and are seperate from the data vlan in the 6509 or 3524XL switches. The phones pass the IPTel packets to the voice vlan and the pc in the switchport on the bottom of the IP Phone passes the data to a data vlan. Larry Letterman Cisco Systems [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of M.C. van den Bovenkamp Sent: Wednesday, September 04, 2002 2:37 PM To: [EMAIL PROTECTED] Subject: Re: VOIP and subnets [7:52688] Joseph Malin wrote: 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. Not necessarily. At least some IP phones will do 802.1Q and put their own VoIP traffic in a different VLAN from the data traffic that the PC plugged into them generates. Regards, Marco. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52702t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: RE: VOIP and subnets [7:52688]
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. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52703t=52688 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
