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11-13-2016 07:47 AM
11-13-2016 07:47 AM
need to connect Single and multi mode SFP in single 24 port hp switch
hi
I have hp 24 port poe switch
there are 2 SFP port. I had made trunk for these port and added in vlan
in One SFP port i ll be conencting single mode SFP with single mode cable
in other SFP i ll be conencting multi mode SFP with multi mode cable
will this connectivity work ? do I need to any configuarion ?
Waiting for the reply
Regards
Biju
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11-13-2016 08:10 AM - edited 11-13-2016 08:18 AM
11-13-2016 08:10 AM - edited 11-13-2016 08:18 AM
Re: need to connect Single and multi mode SFP in single 24 port hp switch
Considering those two ports, from the point of view of being tagged with one or more VLANs *and* from the point of view of assigning to each physical port a specific Port Type (Access, Hybrid or Trunk) or other port specific settings (PVID included), those two exact ports are - AFAIK - independents each other ...exactly like any other physical port on your Switch...so you can manage them freely and separately.
Or...what you really wanted to ask is if you can aggregate those SFP ports into the same LAG (for Port Trunking)?
I'm not an HPE Employee

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11-14-2016 02:49 AM
11-14-2016 02:49 AM
Re: need to connect Single and multi mode SFP in single 24 port hp switch
hi
so you have two SFP ports equipped with different fiber optic transceivers (One Single Mode, one Multi-Mode). Right?
yes in single switch
Yes its VLAN
i had given below the show running config
port 27 and 28 are in Multi mode and single mode respectively
just want to know the steps which i performed are correct ?
Rugby7 Switch4# show running-config
Running configuration:
; J9625A Configuration Editor; Created on release #RA.15.15.0012
; Ver #06:04.18.63.ff.37.2f:9e
hostname "Rugby7 Switch4"
trunk 27-28 trk4 trunk
ip default-gateway 192.168.200.254
snmp-server community "public" unrestricted
vlan 1
name "DEFAULT_VLAN"
no untagged 1-24
untagged 25-26,Trk4
no ip address
exit
vlan 63
name "VLAN63"
untagged 1-23
tagged Trk4
no ip address
exit
vlan 777
name "VLAN777"
untagged 24
tagged Trk4
ip address 192.168.200.104 255.255.255.0
exit
spanning-tree Trk4 priority 4
no tftp server
no dhcp config-file-update
no dhcp image-file-update
password manager
Rugby7 Switch4#
Rugby7 Switch4# show trunks
Load Balancing Method: L3-based (default)
Port | Name Type | Group Type
---- + -------------------------------- --------- + ----- --------
27 | 1000SX | Trk4 Trunk
28 | 1000LX | Trk4 Trunk
Rugby7 Switch4#
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11-14-2016 01:54 PM
11-14-2016 01:54 PM
Re: need to connect Single and multi mode SFP in single 24 port hp switch
The important thing for link aggregation (HP call it "trunk") is that the interfaces being aggregated are the same *speed*, so aggregating an LX with an SX should be fine.
Obviously, the ports at the other end of each of those two links bothy need to be aggregated as well.
*** Just be careful of the distance - if the two links are very different lengths, you might have a problem.
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11-15-2016 01:03 AM
11-15-2016 01:03 AM
Re: need to connect Single and multi mode SFP in single 24 port hp switch
Yep...and also it's important (essential) that Duplex mode should be the same.
Aggregating an SX with a LX fiber optic link (ports) should be OK...but, as @Vince-Whirlwind pointed out, then you may suffer - potentially - of problems derived by differents fiber optic links' lenghts (where considered lenghts are end-to-end)...*generally* Port Trunking is deployed when both end Switches use the same ports typologies, same link lenghts and same duplex modes...this helps in not incurring in nasty and unpredictable issues.
I'm not an HPE Employee

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