Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt When one node compute an SR path to a destination, can it compute the path to only pass the nodes which bind FA-128 to SR SIDs, and avoid the nodes >which bind FA-128 to IP address? If so, how could this node know the binding

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

n Qu > > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > Robert, > > > On 13/10/2020 13:38, Robert Raszuk wrote: > > Peter, > > > > If this is per app how are the constraints shared across apps ? > > FAD

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

> Jie > > > >> > >> thanks, > >> Peter > >> > >>> > >>> Best regards, > >>> Jie > >>> > >>>> -Original Message- > >>>> From: Lsr [mailto:lsr-boun...@ietf.org] On Behalf Of Pet

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

gt; mailto:rbon...@juniper.net>>; Yingzhen Qu mailto:yingzhen...@futurewei.com>>; Gyan >> Mishra mailto:hayabusa...@gmail.com>> >> Cc: lsr@ietf.org <mailto:lsr@ietf.org>; Jeff Tantsura mailto:jefftant.i...@gmail.com>> >> Subject

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

ecific or MAY be topology independent, depending on the > application itself. > > Application-specific advertisement for Flex-Algorithm participation > MUST be defined for each application and is outside of the scope of > this document. > > thanks, > Peter >

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

; Gyan Mishra Cc: lsr@ietf.org; Jeff Tantsura Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt Hi Jimmy, On 10/10/2020 05:05, Dongjie (Jimmy) wrote: Hi Peter, Thanks for your reply. It aligns with my understanding of FAD, which is just a set of

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

c: lsr@ietf.org; Jeff Tantsura > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > Hi Jimmy, > > On 10/10/2020 05:05, Dongjie (Jimmy) wrote: > > Hi Peter, > > > > Thanks for your reply. It aligns with my understanding o

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

>> > Ron >> > >> > >> > >> > Juniper Business Use Only >> > >> > -Original Message- >> > From: Jeff Tantsura >> > Sent: Saturday, October 10, 2020 3:14 PM >> > To: Ron B

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Juniper Business Use Only >>> >>> -Original Message- >>> From: Dongjie (Jimmy) mailto:jie.d...@huawei.com>> >>> Sent: Friday, October 9, 2020 11:06 PM >>> To: Peter Psenak mailto:ppse...@cisco.com>>; Ron Bon

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

t; Regards, > >> Jeff > >> > >>> On Oct 10, 2020, at 05:47, Ron Bonica wrote: > >>> > >>> Hi Jimmie, > >>> > >>> Inline..... > >>> > >>> Ron > >>> > >>

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

; Ron Bonica ; Yingzhen Qu ; Gyan Mishra Cc: lsr@ietf.org; Jeff Tantsura Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt Hi Jimmy, On 09/10/2020 04:59, Dongjie (Jimmy) wrote: Hi Ron, Thanks for explaining the difference between IP Flex-Algo and SR

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

; Jeff Tantsura Subject: RE: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt [External Email. Be cautious of content] Hi Peter, Thanks for your reply. It aligns with my understanding of FAD, which is just a set of constraints for path computation. Thus one Flex-Algo ID

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

: Dongjie (Jimmy) ; Ron Bonica ; Yingzhen Qu ; Gyan Mishra Cc: lsr@ietf.org; Jeff Tantsura Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt Hi Jimmy, On 09/10/2020 04:59, Dongjie (Jimmy) wrote: Hi Ron, Thanks for explaining the difference between IP Fle

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

ctober 11, 2020 3:14 AM > To: Ron Bonica > Cc: Dongjie (Jimmy) ; Peter Psenak > ; Yingzhen Qu ; Gyan > Mishra ; lsr@ietf.org > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > Jie, > > The scoop is different, for SR data pla

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

20 11:06 PM > To: Peter Psenak ; Ron Bonica ; > Yingzhen Qu ; Gyan Mishra > > Cc: lsr@ietf.org; Jeff Tantsura > Subject: RE: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > [External Email. Be cautious of content] > > > Hi Pet

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

; > > Juniper Business Use Only > > > > > > > > -----Original Message- > > > > From: Jeff Tantsura > > > > Sent: Saturday, October 10, 2020 3:14 PM > > > > To: Ron Bonica > > > > Cc: Dongjie (Jimmy) ; Peter Ps

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

> Sent: Saturday, October 10, 2020 3:14 PM > To: Ron Bonica > Cc: Dongjie (Jimmy) ; Peter Psenak ; Yingzhen Qu ; Gyan Mishra ; lsr@ietf.org > Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt > > [External Email. Be c

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

ter Psenak < > ppse...@cisco.com>; Yingzhen Qu ; Gyan Mishra < > hayabusa...@gmail.com>; lsr@ietf.org > > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > > > [External Email. Be cautious of content] > > >

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

iness Use Only > > -Original Message- > From: Jeff Tantsura > Sent: Saturday, October 10, 2020 3:14 PM > To: Ron Bonica > Cc: Dongjie (Jimmy) ; Peter Psenak ; > Yingzhen Qu ; Gyan Mishra ; > lsr@ietf.org > Subject: Re: [Lsr] FW: New Version Notification for &g

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Mishra ; lsr@ietf.org Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt [External Email. Be cautious of content] Jie, The scoop is different, for SR data plane entry uniqueness is in context of SR domain (SID = value + context), while for IP it is global to

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

planes on > other nodes? > > Best regards, > Jie > >> -Original Message- >> From: Lsr [mailto:lsr-boun...@ietf.org] On Behalf Of Peter Psenak >> Sent: Friday, October 9, 2020 11:58 PM >> To: Dongjie (Jimmy) ; Ron Bonica >> ; Yingzhen Qu &g

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

> To: Dongjie (Jimmy) ; Ron Bonica > ; Yingzhen Qu > ; Gyan Mishra > Cc: lsr@ietf.org; Jeff Tantsura > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > Hi Jimmy, > > > On 09/10/2020 04:59, Dongjie (Jimmy) wrote

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Jimmy) ; Ron Bonica > ; Yingzhen Qu > ; Gyan Mishra > Cc: lsr@ietf.org; Jeff Tantsura > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > Hi Jimmy, > > > On 09/10/2020 04:59, Dongjie (Jimmy) wrote: > > Hi Ron, > &g

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

o: Yingzhen Qu ; Peter Psenak >> ; Gyan Mishra >> Cc: lsr@ietf.org; Jeff Tantsura >> Subject: Re: [Lsr] FW: New Version Notification for >> draft-bonica-lsr-ip-flexalgo-00.txt >> >> Hi Yingzhen, >> >> IP Flexible Algorithms are like SR Flexible Algorith

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

, Jie -Original Message- From: Lsr [mailto:lsr-boun...@ietf.org] On Behalf Of Ron Bonica Sent: Sunday, October 4, 2020 4:34 AM To: Yingzhen Qu ; Peter Psenak ; Gyan Mishra Cc: lsr@ietf.org; Jeff Tantsura Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.tx

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

lsr@ietf.org; Jeff Tantsura > Subject: Re: [Lsr] FW: New Version Notification for > draft-bonica-lsr-ip-flexalgo-00.txt > > Hi Yingzhen, > > IP Flexible Algorithms are like SR Flexible Algorithms in the following > respects: > > - Links have IGP metrics, TE met

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Thanks Peter! On Sun, Oct 4, 2020 at 5:51 AM Peter Psenak wrote: > Hi Gyan, > > > > On 03/10/2020 18:54, Gyan Mishra wrote: > > > > > > Thanks Peter for the responses to help clear up my flex algo > understanding!! > > > > > > On Sat, Oct 3, 2020 at 5:45 AM Peter Psenak > >

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Yingzhen, On 03/10/2020 20:08, Yingzhen Qu wrote: Hi Peter, Using flex-algo, a SRv6 locator can be associated with a single algo, which means an IPv6 or IPv4 address can also be associated with a single algo. So my understanding is Ron's proposal is making the configuration of flex-algo easier?

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Gyan, On 03/10/2020 18:54, Gyan Mishra wrote: Thanks Peter for the responses to help clear up my flex algo understanding!! On Sat, Oct 3, 2020 at 5:45 AM Peter Psenak > wrote: Gyan, On 03/10/2020 02:14, Gyan Mishra wrote: > > Hi  Jeff

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

; Gyan Mishra ; Ron Bonica Cc: lsr@ietf.org; Jeff Tantsura Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt [External Email. Be cautious of content] Hi Peter, Using flex-algo, a SRv6 locator can be associated with a single algo, which means an IPv6 or

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Peter, Using flex-algo, a SRv6 locator can be associated with a single algo, which means an IPv6 or IPv4 address can also be associated with a single algo. So my understanding is Ron's proposal is making the configuration of flex-algo easier? Instead of using the exclude or include list you

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

I would think Ron’s IP data plane based flex algo would work identical to SR data plane based flex algo with the base Strict algo 0 providing top layer all node reachability and would contain let’s say loopback0. The algo would have algo and algo # definition on the loopback so the nodes are reac

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Thanks Peter for the responses to help clear up my flex algo understanding!! On Sat, Oct 3, 2020 at 5:45 AM Peter Psenak wrote: > Gyan, > > > > On 03/10/2020 02:14, Gyan Mishra wrote: > > > > > > Hi Jeff > > > > > > From a domain perspective where you have a group of nodes and > > > associated

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

On Sat, Oct 3, 2020 at 4:20 AM Robert Raszuk wrote: > > > Can two nodes that run two different flex algo become ospf or isis > neighbors? > > It is my understanding that those nodes always will become ospf neighbours > as you still run default topology on all of them. I have not seen a case > whe

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Yingzhen, On 02/10/2020 22:15, Yingzhen Qu wrote: Hi Peter, My understanding of flex-algo is that for traffic destined to a prefix on a particular algo, it can only be routed on routers belong to that algo, which also means only routers in that algo calculates how to reach that prefix and

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Gyan, On 03/10/2020 02:14, Gyan Mishra wrote: Hi  Jeff From a domain perspective where you have a group of nodes and associated IP addressed and SID are part of a discrete underlay instance flex algo topology.  On those same set of nodes you could have another topology and associated addre

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

> Can two nodes that run two different flex algo become ospf or isis neighbors? It is my understanding that those nodes always will become ospf neighbours as you still run default topology on all of them. I have not seen a case where flex algo topology can be enabled without default topology. Thx

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Jeff >From a domain perspective where you have a group of nodes and associated IP addressed and SID are part of a discrete underlay instance flex algo topology. On those same set of nodes you could have another topology and associated address and SIDs for a different flex algo. How this woul

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Yingzhen, Yes, that’s the case.  The most important property of an algo computed path is that is has to be consecutive, as either SID or IP address associated with a particular topology is only known within that topology. Looking specifically at Ron’s draft (MPLS could be more complex due to

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Peter, My understanding of flex-algo is that for traffic destined to a prefix on a particular algo, it can only be routed on routers belong to that algo, which also means only routers in that algo calculates how to reach that prefix and install it into the routing table. It seems to me that

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Thanks Peter! On Fri, Oct 2, 2020 at 12:42 PM Peter Psenak wrote: > Gyan, > > > > On 02/10/2020 18:30, Gyan Mishra wrote: > > > All, > > > > > > With SRv6 and IP based flex algo a generic question as it applies to > > > both. Is it possible to have within a single IGP domain different sets > > >

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Gyan, On 02/10/2020 18:30, Gyan Mishra wrote: All, With SRv6 and IP based flex algo a generic question as it applies to both. Is it possible to have within a single IGP domain different sets of nodes or segments of the network running different algorithms. absolutely. From both drafts i

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

gt; > > > > > > > > > > > Good point!! > > > > > > > > > > > > > > Juniper Business Use Only > > > > > > > *From:* Jeff Tantsura > > > *Sent:* Thursday, October 1, 2020 2:08 AM > > &

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Good point!! Juniper Business Use Only From: Jeff Tantsura Sent: Thursday, October 1, 2020 2:08 AM To: Ron Bonica Cc: lsr@ietf.org Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt [External Email. Be cautious of content] Hi Ron, the readers would

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Speaking as WG member... I agree that an independent calculation is required for IP Flex Algorithm and SR Flex Algorithm and this should be documented. However, it doesn't seem to me a normal use case would be to deploy them in the same IGP area. Thanks, Acee On 10/1/20, 4:07 AM, "Lsr on be

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Hi Ron, I can only guess the use-case, but it may be worth of documenting it in the draft. Your proposal is basically mimicking SRv6 Locator behavior for regular IPv6 and IPv4 prefixes. One can even argue that for IPv6 you can use a Locator advertisement with no SIDs, but I agree that would

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

interface, they are also associated with one another.  An IP >    address MAY be associated with, at most, one interface. > > > > > > Juniper Business Use Only > From: Muthu Arul Mozhi Perumal > Sent: Wednesday, September 30, 2020 9:59 AM > To: Ron Bonica >

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

rumal Sent: Wednesday, September 30, 2020 9:59 AM To: Ron Bonica Cc: lsr@ietf.org Subject: Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt [External Email. Be cautious of content] A quick question: If an IP address and a Flexible Algorithm are associated wit

Re: [Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

A quick question: If an IP address and a Flexible Algorithm are associated with the same interface, they are also associated with one another. An IP address MAY be associated with, at most, one interface. If multiple IP addresses and multiple flexible algorithms are associated with a l

[Lsr] FW: New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

Please review and comment Ron Juniper Business Use Only > -Original Message- > From: internet-dra...@ietf.org > Sent: Tuesday, September 29, 2020 9:36 AM > To: Parag Kaneriya ; Shraddha Hegde > ; Ron Bonica ; Rajesh M > ; William Britto A J >