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fishbach
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Feature Request: RSTP for CRS to build ring network

Tue Apr 21, 2015 11:01 pm

Dear MikroTik-Team,

I have a setup with 6 CRS226-24G-2S+RM connected via 10G Fiber.

Currently they are connected in-line. So if one connection is broken, about half of the network is disconnected.

I would like to connect them in a ring so that an arbitrary connection can fail without anyone being disconnected.

For this I need any kind of STP.

So I kindly request to place the implementation of RSTP for your switches into your feature list of upcoming releases.

I am aware that there is RSTP in the kernel. But I would loose the 10G throughput if I would configure kernel bridges between the switches. I need RSTP in switch mode.

Thank you and best regards,

Chris - a happy sysadmin responsible for more than 20 MikroTik devices in one network.
 
roadracer96
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Re: Feature Request: RSTP for CRS to build ring network

Thu Apr 23, 2015 2:52 am

G8032 rings. Not stp.
 
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ZeroByte
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Re: Feature Request: RSTP for CRS to build ring network

Thu Apr 23, 2015 5:47 am

Yep. Rings + STP = horrible headaches

Rings are for sub-millisecond failover type of technology, not things like OSPF, STP, etc.
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barkas
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AW: Feature Request: RSTP for CRS to build ring network

Thu Apr 23, 2015 9:21 am

That's not very helpful, he obviously needs some sort of redundancy in his network.
 
roadracer96
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Re: Feature Request: RSTP for CRS to build ring network

Thu Apr 23, 2015 7:44 pm

Rings work great.. STP, kinda well... sucks.. it works, but not super duper fast.

G8032 rings in a switched environment are awesome. No reason the feature shouldn't be included.
 
fishbach
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Re: Feature Request: RSTP for CRS to build ring network

Sun May 03, 2015 10:22 am

barkas is right. What matters in my case is redundancy and being able to reconfigure or update a single device without breaking the whole net.

Of course would a G8032 ring solve my requirements. The question is only whether RSTP or MSTP is useful in more different scenarios. In a data center where I have two uplinks, I would use two switches connected in a mesh like this:

http://www.cloudwifiworks.com/images/Sw ... iagram.jpg

I cannot see a ring solution here. Even downtimes of several seconds and throughput reduction do not matter in my cases. I -only- need reliability.

Chris
 
roadracer96
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Re: Feature Request: RSTP for CRS to build ring network

Thu May 07, 2015 3:31 am

Rings work better there than stp and are simpler. Mlag would be better for that scenario though. Mikrotik is really behind the times when it comes to basic redundancy considerations.
 
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chechito
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Re: Feature Request: RSTP for CRS to build ring network

Thu May 07, 2015 10:07 pm

pending topics on CRS to be a competent smart switch:

802.1x auth
stp rstp mstp
lacp
acl (on 1xx series is not supported)

G8032 will be nice but beyond the scope of a smart switch
 
andersonlich
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Re: Feature Request: RSTP for CRS to build ring network

Mon May 11, 2015 4:18 pm

Why would you use ring L2 ? Just little bit upgrade to CCR you can make ring network based on MPLS using VPLS for the service.
CRS, also support MPLS and VPLS too. The spec doesn't like CCR, maybe CRS focusing to L2 network.

Cmiiw
 
roadracer96
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Re: Feature Request: RSTP for CRS to build ring network

Tue May 12, 2015 3:24 am

Ethernet rings are l2. Vpls from Mikrotik is shoddy for that purpose. Not to mention convoluted solution to a small problem. Rings are very simple and very fast.
 
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chechito
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Re: Feature Request: RSTP for CRS to build ring network

Tue May 12, 2015 6:21 am

Why would you use ring L2 ? Just little bit upgrade to CCR you can make ring network based on MPLS using VPLS for the service.
CRS, also support MPLS and VPLS too. The spec doesn't like CCR, maybe CRS focusing to L2 network.

Cmiiw
because switching functionalities are in hardware at wire speed

RouterOS MPLS VPLS are software implementations obviously not the purpose of a hardware L2 switch
 
swissiws
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Re: Feature Request: RSTP for CRS to build ring network

Wed Jul 15, 2015 11:27 am

Mikrotik MUM 2015 slogan is 'routing the world' - and not switching the world....

- so - if you do switching, go and buy on ebay some cisco 3750G layer 3 switches and get all the switching goodies for less $ than you pay for a CCR.

and they can even be stacked if you use etherchannels.
 
grawerpl
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Re: Feature Request: RSTP for CRS to build ring network

Thu Jul 16, 2015 11:18 am

Mikrotik MUM 2015 slogan is 'routing the world' - and not switching the world....

- so - if you do switching, go and buy on ebay some cisco 3750G layer 3 switches and get all the switching goodies for less $ than you pay for a CCR.

and they can even be stacked if you use etherchannels.
Yes you have right but when you sell Switches not only routers you should implement best future and ERPS it is one of the :D Especially when someone consider to unify net hardware to one manufacturer (for better compatibility).
 
alfredo
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Re: Feature Request: RSTP for CRS to build ring network

Sat Aug 08, 2015 9:26 pm

I'll second this. I am quite surprised that the CRSs don't have STP. Also, I have searched around and there is not a clear statement from Mikrotik about whether this will be enabled on a future software (or hardware!) release.

I agree that there are great L2 loop protection protocols like G.8032 (a published standard already) that are designed to do what STP does and more and faster and better, but I'd settle for good old RSTP at the moment. It is basically on every switch that you can ssh/telnet/http to that has ever been manufactured, it is usually enabled by default, and therefore it makes introducing new CRS switches on a running network easy.

So Mikrotik guys, can you please let us know if and when the CRSs will feature any kind of loop protection? Bonus points if you also say which one(s).

Thanks.
 
barkas
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AW: Feature Request: RSTP for CRS to build ring network

Sun Aug 09, 2015 12:12 am

Obviously the are more advanced techniques to solve that problem, but stp / rstp is should be a supported baseline.
 
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Re: Feature Request: RSTP for CRS to build ring network

Sat Nov 07, 2015 10:46 pm

Yes, stp / rstp should be included in CRS Family very fast. Other protocols can be done later :-)

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Re: Feature Request: RSTP for CRS to build ring network

Mon Nov 09, 2015 11:40 am

+1 for RSTP for CRS switch config
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Re: Feature Request: RSTP for CRS to build ring network

Wed Feb 24, 2016 2:29 am

+1 RSTP
 
SystemErrorMessage
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Re: Feature Request: RSTP for CRS to build ring network

Thu Feb 25, 2016 3:42 pm

even i need rstp too. I dont have loops but because of the lack of stp related features, when i change the ethernet port i put my gateway on a few times i end up having to reboot the switch. This is disgraceful because my cheaper smart switches from other brands like netgear have RSTP.
 
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Re: Feature Request: RSTP for CRS to build ring network

Sun Mar 13, 2016 5:47 am

Why would you use ring L2 ? Just little bit upgrade to CCR you can make ring network based on MPLS using VPLS for the service.
CRS, also support MPLS and VPLS too. The spec doesn't like CCR, maybe CRS focusing to L2 network.

Cmiiw
there was plenty of "legacy" applications and solution, that Explicitly rely on that, both in healthcare, aerospace and production(saw on food factory once, for example).
VPLS or if you like MPPLS is very very handy but for another League for both overhead, response and purpose/usage.
 
swissiws
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Re: Feature Request: RSTP for CRS to build ring network

Wed Mar 30, 2016 1:28 pm

We might just have to realize, packing features into hardware and hard wire those is just not as easy as software coding.
There is a reason why Cisco switches cost a bunch more just to have such features available. Not that I do not support this request - We have many mikrotik switches without redundancy deployed too.

1 + RSTP on VLAN - because it is common.
 
SystemErrorMessage
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Re: Feature Request: RSTP for CRS to build ring network

Sat Apr 02, 2016 1:26 am

These features are important and many are included in smart switches. Mikrotik CRS should be a fully managed switch, its a shame that its missing some basic smart/unmanaged features.
 
vortex
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Re: Feature Request: RSTP for CRS to build ring network

Sat Apr 02, 2016 3:11 am

Maybe CRS is a good switch if it is the only one in a small office?
 
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isolnet
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Re: Feature Request: RSTP for CRS to build ring network

Sat Apr 02, 2016 10:12 pm

1 + RSTP on VLAN

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