11-08-2007 04:23 AM - edited 03-03-2019 05:44 AM
Hi guys,
Please see below outputs,
1st Question:
why no all mac address appearing on mac table?
This is for cisco C6513 model
Should be ARP table should be listing all the available arp matches?
This interface is connected to a server.
sw9#sh mac-add int f5/38
Legend: * - primary entry
age - seconds since last seen
n/a - not available
vlan mac address type learn age ports
------+----------------+--------+-----+----------+--------------------------
* 107 0015.6053.c61d dynamic Yes 0 Fa5/38 >>>>>>>>>>>>>>>>>>>
sw9#sh run int f5/38
Building configuration...
Current configuration : 191 bytes
!
interface FastEthernet5/38
description SERVER002_SEC >>>>server
switchport
switchport access vlan 107
switchport mode access
no ip address
speed 100
duplex full
spanning-tree portfast
end
sw9#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 204.x.52.12 0 0015.c67f.5f2d ARPA Vlan2
Internet 204.x.52.13 0 0015.63a4.8dc2 ARPA Vlan2
Internet 204.x.52.11 - 0013.5fd3.8dc0 ARPA Vlan2
Internet 204.x.52.8 4 000e.d68d.0400 ARPA Vlan2
Internet 204.x.52.9 12 000e.d68c.cc00 ARPA Vlan2
Internet 204.x.52.1 34 0000.0c07.ac00 ARPA Vlan2
sw9#
only few mac-addresses are shown in the output.
====================================================
2nd Question:
Why when i tried to find information about Vlan 107, i got below error:
but from Sh vlan output, i can see the vlan name and ports associated to it.
sw9#sh run int vlan 107
^
% Invalid input detected at '^' marker.
sw9#
sw9#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa4/35, Gi9/42, Gi9/43, Gi9/44
Gi9/45, Gi9/46, Gi9/47, Gi9/48
Gi12/9, Gi12/29, Gi13/12
Gi13/13, Gi13/14
2 Management_Vlan_2 active Gi10/14, Gi12/1, Gi12/48
........................
107 Server_Prod active Fa2/20, Fa5/17, Fa5/18, Fa5/19
Fa5/20, Fa5/21, Fa5/25, Fa5/37
Fa5/38, Fa5/39, Fa5/42, Fa5/43
Fa5/44, Fa5/45, Fa5/46, Fa5/47
Fa5/48, Gi12/2, Gi12/4, Gi12/5
Gi12/8, Gi12/25, Gi12/38
This is for model C6509 which i can see more vlan information.
sw8#sh run int vlan413
Building configuration...
Current configuration : 284 bytes
!
interface Vlan413
description HYPERION_FW_MGMT
ip address 192.x.35.75 255.255.255.248
no ip redirects
no ip proxy-arp
ip route-cache flow
arp timeout 1800
standby ip 192.x.35.74
standby priority 110
standby preempt delay minimum 5
standby authentication opsmgtpl
end
sw8#
======================================
Thanks in advance
SiraJ
11-08-2007 04:48 AM
Both symptoms can be explained by the assumption that the switch is configured as a layer2 switch. It does not do any ip routing and hence it only needs arp for things like management PC's etc. All the "real work" is done via the cam-table at layer2.
When the switch is configured as layer 2, you will not see an int vlan 107 because it doesn't exist in the configuration.
regards,
Leo
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