[j-nsp] 1000BaseT SFP

Magnus Bergroth bergroth at nordu.net
Thu May 2 04:34:40 EDT 2013


The 40x1GE MX card does only support 1G, the MPC and the 2x10GE + 20x1GE
supports 10/100/1000.

<<Magnus

> Keith <mailto:kwoody at citywest.ca>
> 16 maj 2011 19:32
>
>  Trying to connect GE copper SFP on MX to a 100meg port on a cisco
> switch, 3560 actually.
>
> ge-0/0/2 {
> description "<< Test Link >>";
> enable;
> speed 100m;
> link-mode full-duplex;
> unit 0 {
> family inet {
> address 192.168.1.2/26;
>
> show interface ge-0/0/2:
>
> Physical interface: ge-0/0/2, Enabled, Physical link is Up
> Interface index: 136, SNMP ifIndex: 511
> Description: << Test Link >>
> Link-level type: Ethernet, MTU: 1514, Speed: 100mbps, BPDU Error:
> None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering:
> Disabled, Flow control: Enabled,
> Auto-negotiation: Enabled, Remote fault: Online
> Device flags : Present Running
> Interface flags: SNMP-Traps Internal: 0x4000
> Link flags : None
> CoS queues : 8 supported, 8 maximum usable queues
> Current address: 80:71:1f:91:10:02, Hardware address: 80:71:1f:91:10:02
> Last flapped : 2011-04-28 13:44:09 PDT (1w5d 03:08 ago)
> Input rate : 0 bps (0 pps)
> Output rate : 0 bps (0 pps)
> Active alarms : None
> Active defects : None
>
> Logical interface ge-0/0/2.0 (Index 74) (SNMP ifIndex 522)
> Flags: SNMP-Traps 0x4000000 Encapsulation: ENET2
> Input packets : 0
> Output packets: 19
> Protocol inet, MTU: 1500
> Flags: Sendbcast-pkt-to-re
> Addresses, Flags: Is-Preferred Is-Primary
> Destination: 192.168.1.0/26, Local: 192.168.1.2, Broadcast: 192.168.1.63
> Protocol multiservice, MTU: Unlimited
>
> Swapped cables, xover and straight. Setup the cisco port as
> access/vlan and a routed port
> hardcoding the speed/duplex and auto and I can not get a link between
> the devices.
>
> My question is can these 1000BaseT SFP's work at 100M? I can configure
> them as such
> but do they actually work at 100M?
>
> Thanks,
> Keith
>
>
>
>
>
>
>
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