Re: [j-nsp] EX4500 - 3rd party DAC/Twinax cable support - link-up at 1g instead of 10g

[Dale Shaw]

Hi all,

Just following up on this post from April. My customer followed
through with JTAC and eventually it was determined that, while active
DAC cable support was planned for introduction in JUNOS 12.1, it
didn't actually make it.

References to active DAC cable support disappeared from various
documents in late May (12.1 release notes, etc.)

JTAC said: The Active DACs that are coming for EX's will be first
supported on the EX8200's and could be coming next release.

cheers,
Dale

On Sun, Apr 29, 2012 at 12:43 PM, Dale Shaw dale.shaw+j-...@gmail.com wrote:
 Hi all,

 I have a customer that is trying to connect some ESX hosts at 10g to a
 recently commissioned EX4500 VC.

 Their ESX hosts are IBM servers, and they were supplied with the
 following DAC cables:

 Cable: IBM Twin-ax Active Cable 5M, PN: 45W3039
 Cable labelled as: Brocade 10G Active 5M FCoE, 58-123-01

 The (two-member) EX4500 VC is running JUNOS 12.1R1 (mostly due to this
 release being the first to officially support active DAC cables).

 The EX4500 detects the interface when plugged into an SFP+ slot but
 the line speed/link-up speed is 1g (ge-*), not 10g (xe-*). Note there
 are no uplink modules installed; we're going directly into the
 built-in ports.

 Other info:
 ESX Version: ESX 4.1.0 Build 582267
 Adapter Model: IBM 42C1801
 ESX networking driver: qlgc-qlge-1.0.0.45-100.27-offline_bundle-418618

 Has anyone experienced this before? JTAC didn't provide much insight,
 other than to try a Juniper branded cable (e.g. EX-SFP-10GE-DAC-5m or
 EX-SFP-10GE-ACT-5M). So, that's our next step.
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Re: [j-nsp] Strange log messages with a new SFP Module.

[Ihsan Junaidi Ibrahim]

I've had those messages too when I plugged in the SFPs. Some SFP brands that 
used to work on GE PICs and MICs on M/T/MX series on 10.4 now complains of the 
same error logs.

I can't recall the specific EEPROM ID offhand but maybe you can jog my memory 
by running show chassis pic on the slot.

On Jun 20, 2012, at 10:24 PM, Gustavo Santos wrote:

 Hi,
 
 We just bough some SFP-LX and we're getting these log messages below.
 
 Jun 20 11:18:53.863 2012  BRD01 tfeb0 PQ3_IIC(WR): no target ack on byte 0
 (wait spins 3)
 Jun 20 11:18:53.864 2012  BRD01 tfeb0 PQ3_IIC(WR): I/O error
 (i2c_stat=0xa3, i2c_ctl[1]=0xb0, bus_addr=0x51)
 Jun 20 11:18:53.884 2012  BRD01 tfeb0 mic_sfp_pca9548_swtbl_clean: Reset
 MUX to SFP ports
 Jun 20 11:18:53.975 2012  BRD01 tfeb0 Reset media mux for mic slot 1
 
 Anyone seen this before?
 I  changed for other LX modules and I allways get those messages.
 
 The router is a MX80-5 running Junos 12.1
 
 
 Gustavo Santos
 Analista de Redes
 CCNA , MTCNA , MTCRE, MTCINE, JUNCIA-ER
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