Edgy: Eth0 not setting correct MTU

[Richard]

> can you please post the whole ifconfig output?
> What is in your /etc/network/interfaces
>
> it says your mtu is 576 right now. Maybe some hardware or cable issue?
>
> bye Thilo

Okay, Thilo posting:

sudo ifconfig -a
$ sudo ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:03:25:28:93:B3
          inet addr:24.92.160.221  Bcast:255.255.255.255  Mask:255.255.248.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10913 errors:0 dropped:0 overruns:0 frame:0
          TX packets:713 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1351985 (1.2 MiB)  TX bytes:60616 (59.1 KiB)
          Interrupt:50

eth1      Link encap:Ethernet  HWaddr 00:14:A5:41:E4:99
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:11

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

sit0      Link encap:IPv6-in-IPv4
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

PLEASE note: I did Manual Change the MTU's (however when rebooting )
it will go back to 576 !!
============================

Here a dump from sudo lspci -vv

02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8036 PCI-E Fast 
Ethernet Controller (rev 10)
        Subsystem: Gateway 2000 Unknown device 0506
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 58
        Region 0: Memory at c0100000 (64-bit, non-prefetchable) [size=16K]
        Region 2: I/O ports at a000 [size=256]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA 
PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data
        Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1 
Enable+
                Address: 00000000fee00000  Data: 403a
        Capabilities: [e0] Express Legacy Endpoint IRQ 0
                Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
                Device: Latency L0s unlimited, L1 unlimited
                Device: AtnBtn- AtnInd- PwrInd-
                Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
                Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
                Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s, Port 3
                Link: Latency L0s <256ns, L1 unlimited
                Link: ASPM Disabled RCB 128 bytes CommClk- ExtSynch-
                Link: Speed 2.5Gb/s, Width x1
        Capabilities: [100] Advanced Error Reporting
=========================================================
Here a dump of the networking:
Command 1 --no-devices --no-ip --no-arpcache --no-routes :
############################## Devices ##################################
nu dev   ethernet_hwtype   mtu   real_device_name
1  Lo0   loopback          16436 lo
2  Eth0  00:03:25:28:93:B3 1500  eth0
3  Eth1  00:14:A5:41:E4:99 1500  eth1
4  Unk0  unknown           1480  sit0
################################## IP ######################################
nu ip             /netmask                    ppp point_to_point_with
1  127.0.0.1      /255.0.0.0                  0
1  ::1/128                                    0
2  24.92.160.221  /255.255.248.0              0
############################ ArpCache/Neighbor #############################
nu ethernet          ip
2  00:03:25:28:93:B3 24.92.160.221
2  00:05:9A:D7:88:71 24.92.160.1
################################## Routes###################################
nu destination    /netmask         source              gateway          metric
1  127.0.0.1      /255.255.255.255 local                                   0
2  24.92.160.221  /255.255.255.255 local                                   0
2  24.92.160.0    /255.255.248.0   24.92.160.221                           0
1  127.0.0.0      /255.0.0.0       127.0.0.1                               0
2  0.0.0.0        /0.0.0.0         24.92.160.221       24.92.160.1         0
1  ::1/128                         local                                   0

=========

Thanks -
Oh, here a cup on me.

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