Check whether there is any issue with the packet size like mtu 1500 bytes mismatch in the link. If you are using PPP multilink in the interface Async or Interface Group-async and if you are not using ISDN dial-up you can disable ppp multink which is not needed. PPP multilink is needed only when both ISDN B-channels has to be enabled.
You have to also configure modemcap which will help in this issue. Check the below links on how to configure modemcap use ctrl-F to locate in the page
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...