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Meraki MX95 WAN2 SFP will not link to an Extreme switch (but does to Netgear): power cycle after inserting the SFP

Asked Active Viewed 111 Original language: English
2

A Meraki MX95's WAN2 SFP would not link to an upstream Extreme switch, while the same SFP and patch linked to a Netgear switch, which in turn linked to the Extreme. The same happened with an MX85 against an AT&T-provided Ciena device. Cisco-certified and Extreme-certified SFPs were tried in all combinations, with ports set to static 1 Gbps and to auto on all devices.

  • Hardware: Cisco Meraki MX95, Cisco Meraki MX85, Extreme switch, Netgear switch, Ciena switch
  • Transceivers: Cisco-certified 1G SFP, Extreme-certified 1G SFP
  • Form factor: SFP

Symptoms / messages:

no link to Extreme/Ciena upstream
works to Netgear with same optic

Comments 2

Match optic type (SX/SR/LR/LX) and wavelength on both ends and check part numbers; some vendors only accept approved optics.

3 ChinasfpnodeCN Original (English)

Insert the SFP and then power-cycle the MX95: MX models with dual-personality ports only detect the port type at power-on.

0 Italylambdapilot72IT Original (English)
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