Dual TOR with single NIC server, server can not ping active TOR

[farhad-sultani]

 I am running SONiC in Arista 7260cx3, in Dual TOR with single NIC server, server can ping TOR_A (standby) and can not ping TOR_B (active). 
 The server is connected with breakout muxcable (Y-cable vendor=Credo model=CACL15321P2PA1MS) to the TOR_A and TOR_B. 
 Same scenario is running in Arista 7050cx3 with SONiC NOS, server can ping both TOR_A and TOR_B. 

Output of show version

admin@BSL-0101-0101-01T0:~$ show muxcable cableinfo Ethernet40
Vendor Model

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Credo CACL15321P2PA1MS

admin@BSL-0101-0101-01T0:~$ show muxcable cableinfo Ethernet40