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APIC interfaces question

a12288
Level 3
Level 3

On APIC-M2 where I have 2 phy fabric connections but at the GUI I have seen 4 phy interfaces, can someone help to explain the relationship or mapping between them. I am going to replace the APIC-M2 with APIC-M4 soon and need to move all the phy connections from APIC-M2 to APIC-M4, and there are 4 10g interfaces on APIC-M4. Thanks.

Leo

a12288_0-1716928237292.png

 

1 Accepted Solution

Accepted Solutions

RedNectar
VIP
VIP

Hi @a12288 ,

Firstly, your APIC M2 for which you've supplied the screenshot (tip - next time change/drag the size to full width) is fitted with a VIC 1455 or similar, shown as no 9 below and as bond0 on the APIC screenshot below (it's like yours, just my lab).  The tricky bit is that eth2-1 and eth2-2 are ports 1 and 3 on the VIC. Ports 2 & 4 are not used. To see this mapping, you need to go to the CIMC and trace the MACs on the VICs (pic 3 & 4 below).

2 below is bond1 - consisting of eth1-1 and eth1-2

RedNectar_2-1716967520181.png

RedNectar_5-1716968054149.png

 

RedNectar_3-1716967931557.png

RedNectar_6-1716968187123.png

But back to your question - moving to the M4 should not be a problem except the bond1 interfaces will now be 10G - they should be installed in the mLom (3 below) and PCIe Riser 01 should have 2x10/25G SFPs or 2x10GBase-T ports - they will connect to two leaves

RedNectar_8-1716968722380.jpeg

 

 

 

 

 

 

RedNectar aka Chris Welsh.
Forum Tips: 1. Paste images inline - don't attach. 2. Always mark helpful and correct answers, it helps others find what they need.

View solution in original post

4 Replies 4

Remi-Astruc
Cisco Employee
Cisco Employee

Hi @a12288 ,

The 4 interfaces you see in the GUI are the following:

- eth1-1 and eth1-2 are the out-of-band management interfaces (RJ45) aggregated in bound1

- eth2-1 and eth2-2 are fabric downlink interfaces towards the Leaves (SFP on the VIC card) aggregated in bound0

Regards

 

Remi Astruc

Thanks Remi Astruc.

 

Leo

RedNectar
VIP
VIP

Hi @a12288 ,

Firstly, your APIC M2 for which you've supplied the screenshot (tip - next time change/drag the size to full width) is fitted with a VIC 1455 or similar, shown as no 9 below and as bond0 on the APIC screenshot below (it's like yours, just my lab).  The tricky bit is that eth2-1 and eth2-2 are ports 1 and 3 on the VIC. Ports 2 & 4 are not used. To see this mapping, you need to go to the CIMC and trace the MACs on the VICs (pic 3 & 4 below).

2 below is bond1 - consisting of eth1-1 and eth1-2

RedNectar_2-1716967520181.png

RedNectar_5-1716968054149.png

 

RedNectar_3-1716967931557.png

RedNectar_6-1716968187123.png

But back to your question - moving to the M4 should not be a problem except the bond1 interfaces will now be 10G - they should be installed in the mLom (3 below) and PCIe Riser 01 should have 2x10/25G SFPs or 2x10GBase-T ports - they will connect to two leaves

RedNectar_8-1716968722380.jpeg

 

 

 

 

 

 

RedNectar aka Chris Welsh.
Forum Tips: 1. Paste images inline - don't attach. 2. Always mark helpful and correct answers, it helps others find what they need.

Thanks, Chris.

My M2 rear interface layout is little bit different from yours, but I got it figured out and the M4 replacement has been scheduled.

 

Leo

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