This likely refers to IP-Trunking or link aggregation. For instance, Huawei documentation links HDLC and IP-Trunk configurations to increase bandwidth and improve link reliability. Download and Security Precautions
A bit-oriented, synchronous data link layer protocol used for reliable transmission between network nodes. It is commonly used as a default encapsulation on serial interfaces for vendors like Cisco . Download IDC HDLC TNK zip
This software is used to manage and analyze data from cable certification testers. This likely refers to IP-Trunking or link aggregation
Always prefer official manufacturer sites like American Tech Supply or Huawei Technical Support . Download IDC HDLC TNK zip