There are many articles explaining "MTU" and "IP MTU", but I can't work out what would be the impact of setting interface/system MTU, but leaving ip mtu unconfigured. My goal is jumbos with the minimum config. system mtu 9198 I just want that end hos...

I've noticed that in the CUC SIP Integration guide, Cisco decided to leave the trunk on delayed offer.The setting for this is on CUCM under SIP Profile:Early Offer support for voice and video callsDisabled = Delayed Offer. (Maybe CUCM would actively ...

Does anyone know why I can't find C8300-RM-4PT-1R within build and price ?I've seen how bad the ISR4431 can be when racked without a bracket each side (mentioned in this post) and am hoping not to repeat this with the C8300 1RU routers. 

Does anyone know if this model of switch would ever support 1Gbit optics, via QSA/CVR-QSFP-SFP10G?At the moment the latest 9500X models (C9500X-28C8D and C9500X-60L4D) only support 10Gbit or above according to the transceiver matrix.

I'm seeing a few references to carrier-id and how it could match a dial-peer either outbound or inbound (e.g. Page 12 in BRKCOL-2314).Could anyone explain please:1. What is the format of this carrier-id or cid tag? Is it a SIP header inside the INVIT...