1. Matakan aiki daban-daban:

Layer 2 sauyaaiki a Layer mahada bayanai, kumaLayer 3 canzawaaiki a cibiyar sadarwa Layer.Maɓallin Layer 3 ba wai kawai cimma babban saurin isar da fakitin bayanai ba, har ma yana samun kyakkyawan aikin cibiyar sadarwa bisa ga yanayin cibiyar sadarwa daban-daban.

2. Ka'idar ta bambanta:

Ka'idar sauyawa ta Layer 2 ita ce lokacin da mai kunnawa ya karɓi fakitin bayanai daga wani tashar jiragen ruwa, zai fara karanta adireshin MAC na tushen a cikin fakitin, sannan ya karanta adireshin MAC ɗin da ake nufi a cikin fakitin, sannan ya duba tashar da ta dace a ciki. teburin adireshin., idan akwai tashar tashar jiragen ruwa daidai da adireshin MAC na manufa a cikin tebur, kwafi fakitin bayanan kai tsaye zuwa wannan tashar jiragen ruwa.Ka'idar canjin Layer 3 tana da ɗan sauƙi, wato, ana musayar hanya ɗaya sau da yawa.Gabaɗaya magana, ita ce hanya ta farko-zuwa makoma.Ana iya musayar tushen zuwa inda ake nufi da sauri.

3. Ayyuka daban-daban:

Maɓallin Layer 2 yana dogara ne akan samun damar adireshin MAC, kawai yana tura bayanai, kuma ba za a iya daidaita shi da adireshin IP ba, yayin da Layer 3 ya haɗa fasahar sauyawa Layer 2 tare da aikin turawa Layer 3, wanda ke nufin cewa Layer 3 switch ne. dangane da Layer 2 canza.Ana ƙara aikin routing zuwa abubuwan da ke sama, kuma ana iya daidaita adiresoshin IP na vlans daban-daban, kuma ana iya aiwatar da sadarwa tsakanin vlans ta hanyar zirga-zirgar matakai uku.

4. Aikace-aikace daban-daban:

Layer 2 switches ana amfani da su ne a Layer access Layer da aggregation Layer, yayin da Layer 3 switches akasari ake amfani da shi a babban Layer na cibiyar sadarwa, amma kuma akwai ƙananan adadin Layer 3 switches da ake amfani da su a aggregation Layer.

5. Sharuɗɗan tallafi sun bambanta:

Maɓallai na Layer 2 suna goyan bayan Layer na zahiri da ka'idojin layin haɗin bayanai, kamar maɓalli na Ethernet da maɓallin Layer 2.HUB yana da ayyuka iri ɗaya, yayin da Layer 3 ke sauyawa yana goyan bayan Layer na zahiri, Layer mahada bayanai da ka'idojin Layer na cibiyar sadarwa.