j*a
发帖数: 14423 | |
L******t
发帖数: 1985 | 2 Casado is an honest guy. The term SDN has been hijacked by every networking
vendor.
In my understanding the original meaning of SDN, separation of control &
data plane, has died quietly. Except Google, who seemingly have implemented
their networks by strict SDN way.
Now SDN mostly means two things:
1) Network programmability. This idea will fly since customers like such
flexibility a lot. In such case networking gears will keep their brain but
can also accommodate commands pushed down by say OpenFlow.
2) Overlay network. This is Nicira's ambition. it has a future to be
partially successfully especially in data center networking.
【在 j*a 的大作中提到】
: http://tech.slashdot.org/story/13/04/29/2324200/inventor-of-ope
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x*********n
发帖数: 28013 | 3 overlay会影响现有的很多protocol吗？
networking
implemented
【在 L******t 的大作中提到】
: Casado is an honest guy. The term SDN has been hijacked by every networking
: vendor.
: In my understanding the original meaning of SDN, separation of control &
: data plane, has died quietly. Except Google, who seemingly have implemented
: their networks by strict SDN way.
: Now SDN mostly means two things:
: 1) Network programmability. This idea will fly since customers like such
: flexibility a lot. In such case networking gears will keep their brain but
: can also accommodate commands pushed down by say OpenFlow.
: 2) Overlay network. This is Nicira's ambition. it has a future to be
|
L******t
发帖数: 1985 | 4 Overlay的Point不就是不影响现有的网络吗？
【在 x*********n 的大作中提到】
: overlay会影响现有的很多protocol吗？
:
: networking
: implemented
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s*****g
发帖数: 1055 | 5 Correct me if I am wrong, I doubt this "overlay" is the same concept as GRE/
MPLS/MPLS-VPN kind of overlay, aka, no new encapsulation is involved.
question I have is, at what layer this "overlay" is on top of?
【在 L******t 的大作中提到】
: Overlay的Point不就是不影响现有的网络吗？
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L******t
发帖数: 1985 | 6 It's IP overlay, like VXLAN/NVGRE/STT. And most likely VXLAN will win out at
least for extended L2.
GRE/
【在 s*****g 的大作中提到】
: Correct me if I am wrong, I doubt this "overlay" is the same concept as GRE/
: MPLS/MPLS-VPN kind of overlay, aka, no new encapsulation is involved.
: question I have is, at what layer this "overlay" is on top of?
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z**r
发帖数: 17771 | 7 does VxLAN scale the MAC?
at
【在 L******t 的大作中提到】
: It's IP overlay, like VXLAN/NVGRE/STT. And most likely VXLAN will win out at
: least for extended L2.
:
: GRE/
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L******t
发帖数: 1985 | 8 It scales in the sense of conversational learning.
【在 z**r 的大作中提到】
: does VxLAN scale the MAC?
:
: at
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z**r
发帖数: 17771 | 9 in FP, there are still many limitations as for conversational MAC learning,
say, the CE VLAN still needs STP, and whenever you bring up an SVI,
conversational MAC learning is broken on that leaf ...
Does VxLAN work better?
【在 L******t 的大作中提到】
: It scales in the sense of conversational learning.
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L******t
发帖数: 1985 | 10 As to interaction with STP, VxLAN is pretty much the same as FP, right?
I don't know why conversational learning is broken upon bringing up an SVI.
Is it an implementation issue, or a more fundamental issue?
,
【在 z**r 的大作中提到】
: in FP, there are still many limitations as for conversational MAC learning,
: say, the CE VLAN still needs STP, and whenever you bring up an SVI,
: conversational MAC learning is broken on that leaf ...
: Does VxLAN work better?
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z**r
发帖数: 17771 | 11 fundamental issue
.
【在 L******t 的大作中提到】
: As to interaction with STP, VxLAN is pretty much the same as FP, right?
: I don't know why conversational learning is broken upon bringing up an SVI.
: Is it an implementation issue, or a more fundamental issue?
:
: ,
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L******t
发帖数: 1985 | 12 能展开说说么？
【在 z**r 的大作中提到】
: fundamental issue
:
: .
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