While surfing, I only get partial pages downloaded before page freezes. Speeds on downloads at about 4Kbps!. Funny thing though, is that Google search is same speed as always.
Again tiscali insists nothing has changed. I know for CERTAIN I did not change my config.
I plugged in a USRobotics router and another Cisco 827 and I encounter the exact same problems so it is not unique to my hardware. With tiscali supplied speedtouch modem, things are full speed.
speedtouch modem default mtu is same as cisco default - 1500. Anyhow, I played around with mtu settings. but made no difference, also pppoa which I am on, is not susceptible to mtu it seems. However, I do not want to rule this out.
do I need to set max receive unit on cisco to 1500? if so how? it is set to 1500 on speedtouch modem.
Can somebody please advise on where I would start to debug this problem.
It's an MTU issue. My mum has a SOHO ADSL router I put in for her ages ago. The week before last she started having problems with only partial pages showing and loads of timeouts. Strangely google.co.uk worked every time.... I assume the google servers have a small MTU configured on them.
I also assume Tiscali made some changes to either block ICMP messages or some other filtering. Anyway I fixed it by reducing the MTU on the PC to 1458 (download DrTCP) and everything sprang into life. I could have reduced the MTU on the router but since this is a single PC either way solves the issue.
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...