Cisco 4506 E 7L vs Juniper Ex4600

[DeeprajRachappawar4038]

Hello cisco team

We need some clarification about inter OEM communication we have juniper Ex4600 switch at core level and we are going to connect cisco 4506 E 7-L at access level with 10 Gig SFP+ Fiber transceiver.

Can you please let us know if we face any challenge during installation if yes please let us know what would be the challenges and measures what we need to take care.

[Giuseppe Larosa]

Hello @DeeprajRachappawar4038 ,

no issues at physical level however (switchport no negotiate on Cisco side can help however)

You need to look at the STP level

Juniper EX 4600 will likely run either RSTP (single instance for each Vlan) or MST.

The best interaction is to have EX 4600 to run MST and the new Cisco to run MST

please note that the native vlan concept on 802.1Q is supported by default only signaling protocols and not for user data on inter switch links

Use a native vlan like 999 dedicated to this scope with no L3 devices on it

Use MST 802.1s or later define the same set of MST instances

Juniper default should be similar to switchport trunk allowed vlan none Cisco default is swithport trunk allowed vlan all.

Be aware of this.

see

https://networktest.com/jnpriop/cookbook.pdf

note also recent JUNOS has changed the command syntax see the JNCIA-JUNOS program

Hope to help

Giuseppe

[DeeprajRachappawar4038]

Hi Giuseppe Larosa

Thank you..!

[Joseph W. Doherty]

A L2 or L3 connection?

If L2, as Giuseppe notes, you can run into STP issues. If L3, there's often no issues.