N5K-5548UP-AF tcp mss adjust?

[blackmetal]

Hello,

i have N5k-5548UP-AF and i have mikrotik router connected to this unit and my tunnel has been establish over that mikrotik tunnel but i need to adjust tcp mss on my n5k-5548up-af side, is there nayway to do this?

Thank you.

[balaji.bandi]

here is the syntax for nexus :

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/interfaces/config/cisco_nexus7000_interfaces_config_guide_8x/cisco_nexus7000_interfaces_config_guide_8x_chapter_01111.html

[blackmetal]

my nexus is n5k and my nxos is 7.3 but its not su[porting this comand,

any idea?

[Georg Pauwen]

Hello,

it looks like the command was introduced in NX-OS 8.2(1), so you need to upgrade:

[jcockburn]

Hi @blackmetal ,

The Nexus 5k series does not seem to have that option mate.

Is there no way you can do that on the Mikrotik side perhaps (or somewhere else upstream)?

Messing with the MTU would give you other headaches so I don't recommend you going that route...

Also, seems like it works different from the router's 'ip tcp mss' cmd...only for TCP traffic from and to switch..or do I misinterpret this below from Command ref:

ip tcp mss

To set a maximum segment size (MSS) for TCP connections originating from or terminating at a switch, use the ip tcp mss command.

Ciao

JC

[blackmetal]

Does nxos 8.2(1) is comaptible with n5k-5548up-af ?

[Georg Pauwen]

Hello,

good point. It is not. The N5K-5548UP-AF only goes up to release 7.3(8)N1(1).