anyone know how to force network cards talk at gig speeds when all it wants to do is establish a connection at 100mbits
root@host1 [/backup/cpbackup/daily]# mii-tool eth0: negotiated 100baseTx-FD, link ok eth1: negotiated 100baseTx-FD flow-control, link ok
01:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express (rev 11) Subsystem: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express Flags: bus master, fast devsel, latency 0, IRQ 169 Memory at dd100000 (64-bit, non-prefetchable) [size=64K] Capabilities: [48] Power Management version 2 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable- Capabilities: [d0] Express Endpoint IRQ 0 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express (rev 11) Subsystem: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express Flags: bus master, fast devsel, latency 0, IRQ 169 Memory at dd200000 (64-bit, non-prefetchable) [size=64K] Capabilities: [48] Power Management version 2 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable- Capabilities: [d0] Express Endpoint IRQ 0 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel
Gregg wrote:
anyone know how to force network cards talk at gig speeds when all it wants to do is establish a connection at 100mbits
root@host1 [/backup/cpbackup/daily]# mii-tool eth0: negotiated 100baseTx-FD, link ok eth1: negotiated 100baseTx-FD flow-control, link ok
One of mii-tool's limitations is that it doesn't report gig speeds correctly. From the man page:
NOTE This program is obsolete. Valid media are only 100baseT4, 100baseTx-FD,100baseTx-HD, 10baseT-FD and 10baseT-HD ethernet cards. For replacement check eth-tool.
Using ethtool:
[root@el4-node1 ~]# ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Current message level: 0x000000ff (255) Link detected: yes
-Greg
On Tue, 2007-05-08 at 09:10 -0700, Greg Bailey wrote:
Gregg wrote:
anyone know how to force network cards talk at gig speeds when all it wants to do is establish a connection at 100mbits
root@host1 [/backup/cpbackup/daily]# mii-tool eth0: negotiated 100baseTx-FD, link ok eth1: negotiated 100baseTx-FD flow-control, link ok
One of mii-tool's limitations is that it doesn't report gig speeds correctly. From the man page:
NOTE This program is obsolete. Valid media are only 100baseT4, 100baseTx-FD,100baseTx-HD, 10baseT-FD and 10baseT-HD ethernet cards. For replacement check eth-tool.
Using ethtool:
[root@el4-node1 ~]# ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Current message level: 0x000000ff (255) Link detected: yes
-Greg _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
awesome. I didn't know about that util.
Thanks for the info and sure enough
root@host1 [~/.ssh]# ethtool eth1 Settings for eth1: Supported ports: [ MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Current message level: 0x000000ff (255) Link detected: yes
-Gregg
On 5/8/07, Gregg gregg@thegbox.com wrote:
anyone know how to force network cards talk at gig speeds when all it wants to do is establish a connection at 100mbits
Plug in a cat5e or cat6 cable.
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Greg Bailey -
Gregg -
Jim Perrin