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Beginner

Message: connections per minute has exceeded the max limit

Hello!

Today I noticed that I'm getting the following log message from the last couple of days:

%HTTP-4-SERVER_CONN_RATE_EXCEED: Number of connections per minute has exceeded the maximum limit(250)as specified by the platform.

 

Last week, I updated a couple of 4506 switches with the following IOS 15.2(2) E3 and only 2 of them are not getting the log message. 

Can someone help me to troubleshoot this? 

 

Thank you!

 

 

1 ACCEPTED SOLUTION

Accepted Solutions
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VIP Advisor

Hi there,

Hi there,

Either disable the HTTP server function:

!
no ip http server
no ip http secure-server
!

 

Or if you use the HTTP for administration purposes, apply an ACL to ensure that unwanted traffic is dropped:

!
ip http access-list <ACL_number>
!

 

cheers,

Seb.

View solution in original post

5 REPLIES 5
Highlighted
VIP Advisor

Hi there,

Hi there,

Either disable the HTTP server function:

!
no ip http server
no ip http secure-server
!

 

Or if you use the HTTP for administration purposes, apply an ACL to ensure that unwanted traffic is dropped:

!
ip http access-list <ACL_number>
!

 

cheers,

Seb.

View solution in original post

Beginner

Thank you! Seb

Thank you! Seb

Highlighted
Beginner

So mine is doing the same

So mine is doing the same thing but we don't manage switches from http at all. Any idea why all of a sudden request would kick off and fill up the log? I was troubleshooting issues an hour ago and now my log has nothing but this message:

Jun 15 11:21:27 EST: %HTTP-4-SERVER_CONN_RATE_EXCEED: Number of connections per minute has exceeded the maximum limit(500)as specified by the platform.

I took your suggestion and "no" ed out those lines but is that the only thing ip http server controls?

device type: 3850 switch running denali 16.3.3

Highlighted
Beginner

Re: Message: connections per minute has exceeded the max limit

OK removing HTTP from the switch soles a problem, the question is what causes it?  Is it a network breach?

In my case there were over 500 attempts or is it a bug?

%HTTP-4-SERVER_CONN_RATE_EXCEED: Number of connections per minute has exceeded the maximum limit(500)as specified by the platform.

Highlighted
VIP Mentor

Re: Message: connections per minute has exceeded the max limit

Hi
Is someone scanning your network with a vulnerability scanner through HTTP , raid seven and mcaffe scanner cause this on my switches all the time
Its some software doing it , check with your security team , mine were the cause for me , they do it every week , the switch has a limit and the scanners can overrun it by constantly scanning by http
My switch below being scanned
Jan 13 01:52:46.024 UTC: %HTTP-4-SERVER_CONN_RATE_EXCEED: Number of connections per minute has exceeded the maximum limit(250)as specified by the platform.
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