Section: 23.3.2.2 Relay Node Vendor-Specific OAM System
Content: As part of the startup procedure, relay nodes (see 3GPP TS 36.300[ Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 ]  [91], clause 4.7) needs to discover its Operations and Maintainence (OAM) system. A relay node vendor-specific OAM system within an operator's network is identified using the relay node type allocation code from IMEI or IMEISV (IMEI-TAC), MNC and MCC from IMSI and in some cases also tracking area code information associated to the eNB serving the relay node. A subdomain name for use by EUTRAN OAM system nodes shall be derived from the MNC and MCC by adding the label "eutran" to the beginning of the OAM System Realm/Domain (see clause 23.2). The vendor-specific relay node OAM system FQDN shall be constructed as following: - tac-lb<TAC-low-byte>.tac-hb<TAC-high-byte>.imei-tac<IMEI-TAC>.eutran-rn.oam.mnc<MNC>.mcc<MCC>.3gppnetwork.org The IMEI-TAC is 8 decimal digits (see clause 6.2). NOTE: IMEI-TAC is used for the type allocation code from IMEI or IMEISV instead of TAC in this clause in order to separate it from the tracking area code (TAC). The TAC is a 16 bit integer. <TAC-high-byte> is the hexadecimal string of the most significant byte in the TAC and <TAC-low-byte > is the hexadecimal string of the least significant byte. If there are less than 2 significant digits in <TAC-high-byte> or <TAC-low-byte >, "0" digit(s) shall be inserted at the left side to fill the 2 digit coding.