hi all,
on 3550 switch where i have 3 SVI as shown below
3550SMI#sh int
Vlan10 is up, line protocol is up
Hardware is EtherSVI, address is 000d.28bc.fd80 (bia 000d.28bc.fd80)********************************
Internet address is 192.168.10.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:03:35, output 00:03:35, output hang never
Last clearing of "show interface" counters 1w4d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
9404 packets input, 885933 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
9705 packets output, 843523 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Vlan20 is up, line protocol is up
Hardware is EtherSVI, address is 000d.28bc.fd80 (bia 000d.28bc.fd80)****************************
Internet address is 192.168.20.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 1d15h, output 2w1d, output hang never
Last clearing of "show interface" counters 1w4d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Vlan30 is up, line protocol is up
Hardware is EtherSVI, address is 000d.28bc.fd80 (bia 000d.28bc.fd80)************************************
Internet address is 192.168.30.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:05, output hang never
Last clearing of "show interface" counters 1w4d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
7563 packets input, 733155 bytes, 0 no buffer
my default gateway is vlan 30 IP 192.168.30.1 and mac address of my default gateway is (bia 000d.28bc.fd80)************************************
i know switches have static mac address assigned .Do this mac address is assigned to specfic switch port like fa0/23 etc?
Or is this mac address always reserverd for SVI ?
my question is even if we have different vlans with different IP address assigned how come all of them have same mac address?
