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How many STP instances on...

How many STP instances on Switch

Created: Dec 3, 2019 23:25:56Latest reply: Dec 18, 2019 17:26:37 149 7 0 0
  Rewarded Hi-coins： 0 (problem resolved)
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Hi,


could someone share how many STP instances can be run on following Switches


- S6720-26Q-LI-24S-AC

- S5720-28X-LI-24S-AC


Kind Regards,

switchSTP
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chenhui
Admin Created Dec 9, 2019 03:19:24 Helpful(0) Helpful(0)

@sofh hi,
well, I don't think so.
Cause each vlan could only bind to one stp instance, so theoretically, at most 4096 stp instances could be enabled at same time. But the value might be smaller than 4096. If you want to get the accruate number, you are kindly advised to contact with pre-sale engineers, I think, they got that number.
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sofh
sofh Created Dec 13, 2019 09:23:29
Hi, thanks, that makes sense, could you please do a favour and guide me an easy way to contact pre-sales engineers for this particular query for this Huawei switch? thanks in advance.  
chenhui
Admin Created Dec 4, 2019 00:56:06 Helpful(1) Helpful(1)

@sofh hello,
instance-id ranges from 0 to 4094. Each process supports a maximum of 65 instances.
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sofh
sofh Created Dec 4, 2019 10:16:26
Does that mean each switch can handle 4094x65 = 266110 STP instances? for example in cisco 3750 total 128 STP instances can work at a time, we can add as many as VLANs we want, but only first 128 VLANS will be served by STP and rest will not have STP running on them, so total capacity comes to 128, likewise at how many vlans we can run STP in Above mentioned Huawei switches?  
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chenhui
chenhui Admin Created Dec 4, 2019 00:56:06 Helpful(1) Helpful(1)

@sofh hello,
instance-id ranges from 0 to 4094. Each process supports a maximum of 65 instances.
  • x
  • convention：

sofh
sofh Created Dec 4, 2019 10:16:26
Does that mean each switch can handle 4094x65 = 266110 STP instances? for example in cisco 3750 total 128 STP instances can work at a time, we can add as many as VLANs we want, but only first 128 VLANS will be served by STP and rest will not have STP running on them, so total capacity comes to 128, likewise at how many vlans we can run STP in Above mentioned Huawei switches?  
chenhui
chenhui Admin Created Dec 9, 2019 03:19:24 Helpful(0) Helpful(0)

@sofh hi,
well, I don't think so.
Cause each vlan could only bind to one stp instance, so theoretically, at most 4096 stp instances could be enabled at same time. But the value might be smaller than 4096. If you want to get the accruate number, you are kindly advised to contact with pre-sale engineers, I think, they got that number.
  • x
  • convention：

sofh
sofh Created Dec 13, 2019 09:23:29
Hi, thanks, that makes sense, could you please do a favour and guide me an easy way to contact pre-sales engineers for this particular query for this Huawei switch? thanks in advance.  
chenhui
chenhui Admin Created Dec 16, 2019 12:04:53 Helpful(0) Helpful(0)

@sofh hi,

you can find the contact on the bottom of the page https://e.huawei.com/en/

seller


If you have any further question, please feel free to post on the forum. 


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ZZEducacion
ZZEducacion Created Dec 18, 2019 15:24:06 Helpful(0) Helpful(0)

No se recomienda tener tantas instancias de STP ya que consume mucha CPU. Existe tambien MSTP que te agrupa una cantidad determinada de VLANs en una instancia STP
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No%20me%20sigas
azkasaqib
azkasaqib Created Dec 18, 2019 17:26:37 Helpful(0) Helpful(0)

good
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