Cabletron Systems Cabletron CyberSWITCH CSX5500 User Manual

Also see for CyberSWITCH 5500: Quick start Manual

Contents

Central Site Remote Access Switch 275CONFIGURING ADVANCED BRIDGINGBridge Filters3. DESTINATION MAC-address DISCARD < distribution list >This filter allows you to discard MAC frames addressed to the specified MAC address. Whenthe specified MAC address appears in the destination address field of the MAC frame, theframe will NOT be forwarded as specified in the distribution list. If no distribution list isspecified, the frame will not be forwarded.4. DESTINATION MAC-address CONNECT< distribution list >This filter allows you to connect MAC frames addressed to the specified MAC address. Whenthe specified MAC address appears in the destination address field of the MAC frame, theframe will be forwarded as specified in the distribution list.5. PROTOCOL protocol-Id DISCARD < distribution list >This filter allows you to discard packets based on the Ethernet type field or the corresponding802.3 LSAP field. You specify the protocol Id that is to be discarded. The filtering mechanismwill determine if the packet is Ethernet format or 802.3 format. The Ethernet type or LSAP fieldwill be checked based on packet format. See the section titled "Protocol Definitions" for moreinformation.6. PROTOCOL protocol-Id CONNECT< distribution list >This filter allows you to connect packets based on the Ethernet type field or the corresponding802.3 LSAP field. You specify the protocol Id that is to be connected. The filtering mechanismwill determine if the packet is Ethernet format or 802.3 format. The Ethernet type or LSAP fieldwill be checked based on packet format. See the section titled “Protocol Definitions” for moreinformation.7. PACKET OFFSET dd MASK xxxxxxxxxxxx VALUE xxxxxxxxxxxx DISCARD list>This filter allows you to discard packets based on packet data outside the source anddestination MAC addresses or protocol Id. For example, you may wish to filter packets basedon IP address information. You would then specify the offset (dd) into the MAC frame wherethe filter comparison is to begin. The mask data indicates which bits within the frame data aresignificant and will be compared to the value. The frame data is logically “anded” with themask, and then compared to the specified value. The value field must be a subset of the maskfield. That is, the value field logically “anded” with the mask field must equal the value field.The value and mask fields must have equal lengths.8. PACKET OFFSET dd MASK xxxxxxxxxxxx VALUE xxxxxxxxxxxx CONNECT list>This filter allows you to connect packets based on packet data outside the source anddestination MAC addresses or protocol Id. For example, you may wish to filter packets basedon IP address information. You would then specify the offset (dd) into the MAC frame wherethe filter comparison is to begin. The mask data indicates which bits within the frame data aresignificant and will be compared to the value. The frame data is logically “anded” with themask, and then compared to the specified value. The value field must be a subset of the maskfield. That is, the value field logically “anded” with the mask field must equal the value field.The value and mask fields must have equal lengths.