© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
Presentation_ID.scr
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© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Switch Management Interfaces
Cisco Catalyst OS
• sc0 inband management interface
• sc0 connects to switching fabric
• sc0 participates in STP, CDP, VLAN membership
• sl0 and me1 out-of-band management interfaces
• sl0 and me1 do not connect to switching fabric
• sl0 and me1 do not participate in STP, CDP, VLAN membership
• Only one out of sc0 and me1 can be up
Cat4K-c (enable) sh int
sl0: flags=50<DOWN,POINTOPOINT,RUNNING>
slip 0.0.0.0 dest 0.0.0.0
sc0: flags=63<UP,BROADCAST,RUNNING>
vlan 1 inet 1.1.1.3 netmask 255.255.255.0 broadcast 1.1.1.255
me1: flags=62<DOWN,BROADCAST,RUNNING>
inet 0.0.0.0 netmask 0.0.0.0 broadcast 0.0.0.0
262626
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Switch Ports/Interfaces
• On Cisco Catalyst OS switches these are
Layer 2 ports
• On Cisco IOS switches these can be
Layer 3 routed interfaces
Layer 3 Switched Virtual interfaces (SVIs)
Layer 3 portchannel interfaces
Layer 2 switchport interfaces—access or trunk
Layer 2 portchannel interfaces
• By default on Cisco IOS switches the interfaces are
Layer 2 switchport interfaces
• “no switchport” command converts these to Layer
3 routed interfaces
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