If app is fast on LAN, but slow on remote, first define what "remote" means. VPN, WAN, etc..
MTU is the first thing I check when any IPSec or other encapsulating protocol is in the data path with those symptoms. MTU issues show up in testing with successful pings (default options), available bandwidth, but when you start an app it's very slow or appears to lock up. (Web browsing especially shows up as very erratic site response. Maybe half the page is drawn and then freezes. Or in business apps a simple login page screen appears and then it becomes frozen after logging in.)
You can verify actual MTU by pinging with large packets and df bit set.
In Cisco routers with VPN (IPSec, DMVPN, Remote access), 'ip mtu 1400' and 'ip tcp adjust-mss 1360' are good bets, applied on the encapsulating interface.
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...