Stack MAD

Created: Jan 20, 2020 07:52:27Latest reply: Jan 20, 2020 08:08:22 70 3 1 0
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Hello team,

I have some questions about MAD in the situation of two systems stack functioning as the relay of each other.

The documentation said:

stack

https://support.huawei.com/enterprise/fr/doc/EDOC1000178167/75102114/configuring-mad

stack

https://support.huawei.com/enterprise/fr/doc/EDOC1000178167/cd86520f/stack-split-and-mad


There are my questions:

1. When two systems stack functioning as the relay of each other, the MAD domain IDs must be different, but is it necessary to use different Eth-trunks or it could work with the same Eth-trunk? (between S12708 stack and S6720 stack)

2. Is there any limitations of MAD on the S12708 and CE8860? Is interoperability possible between the two systems?

Thank you!

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Featured Answers
Popeye_Wang
Admin Created Jan 20, 2020 07:58:38 Helpful(1) Helpful(1)

Hello Hobbit,

1. You can use only one eth-trunk as the picture already shows.

stack

2. The same function is called DAD instead of MAD on CE switches. When the CE8860 uses DAD proxy mode to detect the stack, the  S12700 can be DAD proxy; but when S12700 uses MAD proxy mode to detect the stack, the CE8860 can’t be the MAD proxy.

I hope this helps.


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All Answers
Popeye_Wang
Popeye_Wang Admin Created Jan 20, 2020 07:58:38 Helpful(1) Helpful(1)

Hello Hobbit,

1. You can use only one eth-trunk as the picture already shows.

stack

2. The same function is called DAD instead of MAD on CE switches. When the CE8860 uses DAD proxy mode to detect the stack, the  S12700 can be DAD proxy; but when S12700 uses MAD proxy mode to detect the stack, the CE8860 can’t be the MAD proxy.

I hope this helps.


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Hobbit
Hobbit Created Jan 20, 2020 08:05:59 Helpful(0) Helpful(0)

Posted by Popeye_Wang at 2020-01-20 07:58Hello Hobbit,1. You can use the same eth-trunk as the picture already show it is one eth-trunk.2. Th ...

I don't quite understand your answer to the second question,
Can you please provide me some configuration or more details, please.
My understanding is that if I want to use S12700 as a DAD relay for the CE, this is possible. But I cannot use the CE as a relay for the 12700. So it’s like a one-way operation.

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Popeye_Wang
Popeye_Wang Admin Created Jan 20, 2020 08:08:22 Helpful(0) Helpful(0)

Posted by Hobbit at 2020-01-20 08:05 I don't quite understand your answer to the second question,Can you please provide me some configu ...

Yes, it’s a one-way operation.

Below you can find a configuration example for CE and S Switch:

CE configuration

#

interface 10GE1/0/5

eth-trunk 10

#

interface 10GE2/0/5

eth-trunk 10

#

interface Eth-Trunk10

dual-active detect mode relay

#

return

 

S configuration

#

interface GigabitEthernet1/0/19

eth-trunk 1

#

interface GigabitEthernet1/0/21

eth-trunk 1

#

interface Eth-Trunk1

mad relay

#

return


Please tell me if there is anything else I can help you.

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