On one of my linux computers the network is acting weird. It's really slow when connecting to any computer outside of my local network (~1.5 Kb/s no matter what server). At the same time it has good speed within the local network (>4 Mb/s).
Dmesg does not report any errors related to the loaded module, dns is working, the mtu-size is fine. I'm using a wired connection, not wlan. I have tried with different cables and different ports on the router, the problem persists.
ip -s -s link eth0 <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 161453 227 49 0 0 0 RX errors: length crc frame fifo missed 0 0 0 49 109
Tx has no errors.
ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Link partner advertised pause frame use: Symmetric Link partner advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000007 (7) drv probe link Link detected: yes ethtool -S eth0 NIC statistics: tx_ok: 17330 rx_ok: 24344 tx_err: 0 rx_err: 0 rx_fifo: 1034 frame_align: 0 tx_ok_1col: 0 tx_ok_mcol: 0 rx_ok_phys: 24295 rx_ok_bcast: 49 rx_ok_mcast: 0 tx_abort: 0 tx_underrun: 0 rx_frags: 0
Ok, so I just proxied the traffic through another local machine and managed to get xorg, firefox etc down and I just realized that:
- If I load a heavyweight webpage everything behaves as expected, speed is fine
- If I only wget a single file, with no other tcp-connections running, the behaviour persists
So it seems that it's related to having FEW active connections (I also get a higher degree of fifo errors when having one single connection). Could this be a driver issue?