Re: [i2rs] multi-headed control of I2RS agent v.s. i2rs-Ephemeral-state

2015-08-14 Thread Joel M. Halpern
...@yumaworks.com] *Sent:* Saturday, July 18, 2015 9:55 PM *To:* Linda Dunbar *Cc:* i2rs@ietf.org; Susan Hares; jh...@juniper.net *Subject:* Re: [i2rs] multi-headed control of I2RS agent v.s. i2rs-Ephemeral-state Hi, very interesting comments... I agree these are requirements that could apply to more than

Re: [i2rs] multi-headed control of I2RS agent v.s. i2rs-Ephemeral-state

2015-08-14 Thread Linda Dunbar
Thanks Joel and Andy for the clarification. See my additional comments inserted below: From: Andy Bierman [mailto:a...@yumaworks.com] Sent: Saturday, July 18, 2015 9:55 PM To: Linda Dunbar Cc: i2rs@ietf.org; Susan Hares; jh...@juniper.net Subject: Re: [i2rs] multi-headed control of I2RS agent

Re: [i2rs] multi-headed control of I2RS agent v.s. i2rs-Ephemeral-state

2015-07-19 Thread Joel M. Halpern
Thanks Andy. I had missed that line in Linda's email. I agree with Andy. As I understand the WG agreements, ephemeral state has nothing to do with the presence or absence of a connection to the I2RS client which provided the state. The ephemeral aspect is strictly about whether the state

Re: [i2rs] Multi-Headed Control

2014-01-17 Thread Songhaibin (A)
AM To: 'Joel M. Halpern'; Songhaibin (A); 'KwangKoog Lee' Cc: i2rs@ietf.org; Guanxiaoran Subject: RE: [i2rs] Multi-Headed Control Mach, Haibin, and KwanKooq: Joel gave you brief answers and then suggested reading the document. As one of the co-authors, I will attempt to give the longer

Re: [i2rs] Multi-Headed Control

2014-01-17 Thread Joel M. Halpern
AM To: 'Joel M. Halpern'; Songhaibin (A); 'KwangKoog Lee' Cc: i2rs@ietf.org; Guanxiaoran Subject: RE: [i2rs] Multi-Headed Control Mach, Haibin, and KwanKooq: Joel gave you brief answers and then suggested reading the document. As one of the co-authors, I will attempt to give the longer answers

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread KwangKoog Lee
I do not fully understand the data model of i2rs. But in case that many clients interact forwarding devices with the i2rs-enabled control plane, various policies about routing, signaling, qos and etc. from multiple clients or multiple upper users (network applications) can be set to those devices

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread Joel M. Halpern
While I will try to paraphrase things to answer your question, I recommend you read the archtiecture draft to get more details. The assumption is that normally different I2RS clients will be asking the agent to perform operations which change different pieces of data. We discussed various

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread Mach Chen
@ietf.org; Guanxiaoran Subject: Re: [i2rs] Multi-Headed Control While I will try to paraphrase things to answer your question, I recommend you read the archtiecture draft to get more details. The assumption is that normally different I2RS clients will be asking the agent to perform operations

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread Joel M. Halpern
@ietf.org; Guanxiaoran Subject: Re: [i2rs] Multi-Headed Control While I will try to paraphrase things to answer your question, I recommend you read the archtiecture draft to get more details. The assumption is that normally different I2RS clients will be asking the agent to perform operations which

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread Songhaibin (A)
Hi Joel, It is a little confusing for me. See inline. -Original Message- From: i2rs [mailto:i2rs-boun...@ietf.org] On Behalf Of Joel M. Halpern Sent: Tuesday, January 14, 2014 11:43 PM To: KwangKoog Lee Cc: i2rs@ietf.org; Guanxiaoran Subject: Re: [i2rs] Multi-Headed Control

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread Mach Chen
: Wednesday, January 15, 2014 10:29 AM To: Mach Chen; KwangKoog Lee Cc: i2rs@ietf.org; Guanxiaoran Subject: Re: [i2rs] Multi-Headed Control The unit of data for collisions is to be specified as part of the relevant information models. Trying to define that architecturally seemed counter

Re: [i2rs] Multi-Headed Control

2014-01-14 Thread KwangKoog Lee
confusing for me. See inline. -Original Message- From: i2rs [mailto:i2rs-boun...@ietf.org] On Behalf Of Joel M. Halpern Sent: Tuesday, January 14, 2014 11:43 PM To: KwangKoog Lee Cc: i2rs@ietf.org; Guanxiaoran Subject: Re: [i2rs] Multi-Headed Control While I will try to paraphrase

Re: [i2rs] multi-headed control

2013-01-23 Thread Alia Atlas
On Wed, Jan 23, 2013 at 6:37 PM, Joe Marcus Clarke jcla...@cisco.comwrote: On 1/23/13 5:04 PM, Alia Atlas wrote: I'd be interested in hearing others perspective on the use-cases requiring multi-headed control and what you see this requirement as meaning. This is a rather different

Re: [i2rs] multi-headed control

2013-01-23 Thread Alia Atlas
On Wed, Jan 23, 2013 at 7:16 PM, Joe Marcus Clarke jcla...@cisco.comwrote: On 1/23/13 7:08 PM, Alia Atlas wrote: On Wed, Jan 23, 2013 at 6:37 PM, Joe Marcus Clarke jcla...@cisco.com mailto:jcla...@cisco.com wrote: On 1/23/13 5:04 PM, Alia Atlas wrote: I'd be interested in

Re: [i2rs] multi-headed control

2013-01-23 Thread Joe Marcus Clarke
On 1/23/13 7:19 PM, Alia Atlas wrote: Yes, I wasn't considering it overlap - just like two routes in the RIB aren't overlapping if they're not the same prefix. Got you. So maybe the use case should make it clear that the DDoS Service has already deemed a problem is seen (via some

Re: [i2rs] multi-headed control

2013-01-23 Thread Alia Atlas
On Wed, Jan 23, 2013 at 7:26 PM, Joe Marcus Clarke jcla...@cisco.comwrote: On 1/23/13 7:19 PM, Alia Atlas wrote: Yes, I wasn't considering it overlap - just like two routes in the RIB aren't overlapping if they're not the same prefix. Got you. So maybe the use case should make it clear