LAN, Switching and Routing

The Cisco LAN, Routing and Switching Technical Support Forum gives you access to participate in tech discussions and go through documents on Cisco LAN Switch, LAN Router, VLAN, Cisco Catalyst, Catalyst 6500, Catalyst 3550, Jabber Client, Nexus 7000, and other related issues. You can browse through latest tech topics popular among the community.

 

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Not sure if I am in right community... please add this thread to the right one. Thanks! +++ UC540 has 2 VLANs, 1 for data and the other for voice....
12 min 21 sec ago
hello sir,Please help me describe what will switch manageable do when receipt multicast packet ?? let say i have 8 port switch contain 1 vlanwill s...
20 min 41 sec ago
please wich cisco router is the best replacement for a cisco 2621 router
1 hour 4 min ago
Dears,I want to limit the bandwidth 50M per port on 2960x switch.Config:!class-map match-all CLASS_50M match access-group name ACL_50M!policy-map P...
7 hours 58 min ago
dear Collegues,could you please say why i get Access-Reject when i trying to authenticate/authorise in Switch with using Domain user account from A...
9 hours 29 min ago
         
IP SLA 325 3 0 0 0
Routers 2 0 0 0 0
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discussion load balance
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300 0 0 0 carl_townshend
discussion netflow v9 packet.
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170 0 0 0 jorgeangelalvar...
discussion 2940's go offline after multicast session
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discussion question about tuning hsrp and spanning-tree
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discussion Mail Flow Issue - SMTP Traffic through IPSec Tunnel
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141 0 0 0 nagesh@cisco
discussion 3m stacking cable not working on 3750's
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discussion NTP > 2.5Ms dispersal. 4506, 31% CPU load average.
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228 0 0 0 bruce.porter@lm...
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144 0 0 0 carl_townshend
discussion VLANs or not with 2950ST-8 LRE - IOS 121-22
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108 0 0 0 seclabs06
discussion Problem while capturing Data in SNORT
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131 0 0 0 pillairamesh
discussion Layer 2 vlan bleeding
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discussion cisco works 2000 for linux
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119 0 0 0 manoj.jain
discussion 6506/VPN routing problem
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133 0 0 0 GRANT GATHAGAN
discussion hosting dns server
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115 0 0 0 carl_townshend
discussion Catalyst Express 500 DHCP
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discussion Metroethernet QoS..
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discussion netflow on 6509
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discussion 1801 ADSL and cable
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discussion Catalyst Express Configuration
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discussion NAT with simultaneous pool and static with same IP
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299 0 0 0 mbell
discussion Measuring Backplane throughput for switches?
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discussion pat connection to internet
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discussion DDR connection
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discussion Uplinks
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discussion vpn behind dsl connection
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discussion IGMP not checked on VACLS 6500 SUP720-3BXL
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discussion HSRP issue on 7206vxr router.
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discussion What IOS for 2800 w/CME?
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discussion CE- content engine, cache
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discussion "stop" igmp on 3524xl
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discussion rommon xmodem upload cyclade access server
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210 0 0 0 snitram
discussion routing engine, switching engine
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104 0 0 0 carl_townshend
discussion conflict I ran into when I used both 802.1Q trunking and IP ACLs
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CEF
Last Reply 6 years 2 months ago.
1158
0.0
0 ITA Terms
Catalyst 4948
Last Reply 6 years 3 weeks ago.
1637
0.0
0 Ashley Price
Cisco_Catalyst_6506-E_Switch
Last Reply 6 years 3 weeks ago.
1876
0.0
0 Ashley Price
Cisco_Catalyst_6509-E_Switch
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2542
0.0
0 Ashley Price
SFP
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3981
0.0
0 ITA Terms
Add port To Vlan
Last Reply 6 years 2 months ago.
66331
5.0
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GARP
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7094
0.0
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GMRP
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4258
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How to Configure Private Hosts in a Cisco Catalyst 6500 switch
Last Reply 6 years 1 month ago.
2140
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MAC Addresses used by the Cisco 3750
Last Reply 6 years 2 months ago.
1547
0.0
0 Oliver Gorwits
Module status shows unsupported module when installed in slot 10 of the Catalyst 4510R Switch chassis with Supervisor V
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1079
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0
The power management and environmental monitoring features on the Cisco Catalyst 4000/4500 switches
Last Reply 6 years 1 month ago.
260
0.0
0 TCC_2
The %SIBYTE-CFC3-6-SB_RMON_OVRFL: RMON register 20 overflow on mac 1 error message receieved in Catalyst 6500 series switches that runs Cisco IOS system software
Last Reply 6 years 1 month ago.
1701
0.0
0 TCC_2
An active Supervisor Engine 720 crashes after a redundant supervisor is inserted in Catalyst 6500 and Catalyst 7600 series switches
Last Reply 6 years 1 month ago.
862
0.0
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The "%C6KENV-SP-4-FANPSINCOMPAT: Fan tray and power supply 1 are incompatible error message appears in Catalyst 6500 series switches that runs the Cisco IOS system
Last Reply 6 years 1 month ago.
1933
0.0
0 TCC_2
Ports go into err-disable with the %PHY-4-SFP_NOT_SUPPORTED: error message when connecting Catalyst 3560 and Catalyst 3750 Switches using an SFP Interconnect Cable
Last Reply 6 years 1 month ago.
2702
0.0
0 TCC_2
How to remove or erase unused port channel configs in the Catalyst 6500 that runs the CatOS system software
Last Reply 6 years 1 month ago.
1392
0.0
0 TCC_2
Static routes are not displayed in show ip route command in Catalyst 6500 series switches
Last Reply 6 years 1 month ago.
3462
5.0
0 TCC_2
How to configure SPAN and RSPAN on Cisco Catalyst 4500 switches that run Cisco IOS Software
Last Reply 6 years 1 month ago.
10998
0.0
0 TCC_2
User receives periodic %SPANTREE-3-PORTDEL_FAILNOTFOUND syslog messages
Last Reply 6 years 1 month ago.
657
0.0
0 TCC_2
The %SYS-4-P2_WARN: 1/Blocked queue (tx) on port error message is displayed on a Cisco Catalyst 4000 series switch running CatOS
Last Reply 6 years 1 month ago.
471
0.0
0 TCC_2
How to enable VLAN communication between switches in different VTP domains
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1985
5.0
0 TCC_2
How to enable/disable SPAN reflector feature in Catalyst 6500 series switches with the FWSM module
Last Reply 2 years 7 months ago.
4342
0.0
0 TCC_2
Ping issues between service modules and the rest of the network with cross-module etherchannel in Catalyst 6500 Series Switches with Supervisor 720 that runs native Cisco IOS
Last Reply 6 years 1 month ago.
461
0.0
0 TCC_2
A self-signed certificate is added to a Cisco Catalyst switch that is managed through HTTPS
Last Reply 6 years 1 month ago.
1997
0.0
0 TCC_2
The supervisor engine faces issues due to an NVRAM checksum error on a Cisco Catalyst 6000 Series switch that runs Catalyst OS system software
Last Reply 6 years 1 month ago.
576
0.0
0 TCC_2
Unable to configure the QoS related Police CIR percent commands in Catalyst 6500 series switches that run Cisco IOS
Last Reply 6 years 1 month ago.
1755
0.0
0 TCC_2
The "% Session 1 used by service module" error message is displayed during an attempt to delete a SPAN session on a VPN service module
Last Reply 6 years 1 month ago.
2798
0.0
0 TCC_2
The ip access-list resequence command causes an unexpected reload in Catalyst switches that run Cisco IOS system software
Last Reply 6 years 1 month ago.
1443
0.0
0 TCC_2
How to configure MSFC redundancy on Catalyst 6500 and 6000 series switches using HSRP
Last Reply 6 years 1 month ago.
2624
0.0
0 TCC_2
What are the hardware/software limitations regarding the number of trunk ports configured on a Catalyst 6500 Series Switch?
Last Reply 6 years 1 month ago.
363
0.0
0 TCC_2
How to convert from hybrid mode to integrated Cisco IOS Software on a Catalyst 6000 series switch
Last Reply 6 years 1 month ago.
582
0.0
0 TCC_2
Hosts connected to a Catalyst switch are disconnected for a few seconds when a new switch is introduced in the network
Last Reply 6 years 1 month ago.
546
5.0
0 TCC_2
Certain counters rapidly increase in the show port command output on Catalyst switches that run CatOS
Last Reply 6 years 1 month ago.
2895
0.0
0 TCC_2
The %MLS_STAT-SP-4-IP_LEN_ERR: MAC/IP length inconsistencies error message is displayed on Cisco Catalyst switches that run Cisco IOS Software
Last Reply 6 years 1 month ago.
1819
0.0
0 TCC_2
Asymmetric routing with bridge groups on Catalyst 2948G-L3 and 4908G-L3 switches
Last Reply 6 years 1 month ago.
757
0.0
0 TCC_2
The deletion of an ACL that is still bound to a VLAN interface results in high CPU utilzation.
Last Reply 6 years 1 month ago.
597
0.0
0 TCC_2
The %SYS-3-PORT_ERR: Port mod_num/port_num swBusCRCErrorDrop messages are logged on a Catalyst 5000 switch due to a duplex mismatch on an ISL trunk
Last Reply 6 years 1 month ago.
613
0.0
0 TCC_2
How to upload the running configuration or a configuration file stored on the Flash device of a Catalyst switch to a TFTP server
Last Reply 6 years 1 month ago.
4353
0.0
0 TCC_2
The Cisco Catalyst switch does not permit the creation of extended-range VLANs in the VLAN database mode
Last Reply 6 years 1 month ago.
640
0.0
0 TCC_2
How does the Cisco Catalyst 6500 Series WLSM provide fast secure roaming across subnets
Last Reply 6 years 1 month ago.
347
0.0
0 TCC_2
The STP path cost automatically changes when a port status such as speed/duplex is changed
Last Reply 6 years 1 month ago.
360
0.0
0 TCC_2
The user receives the "%SYS-3-FAB_SYNCERR: [chars] detected" error message in Catalyst 6000/6500 series switches running CatOS
Last Reply 6 years 1 month ago.
335
0.0
0 TCC_2
How to upgrade the ROMmon image on a Catalyst 6000 series switch with Supervisor Engine 2
Last Reply 6 years 1 month ago.
1607
0.0
0 TCC_2
The "%IP-4-DUPADDR: Duplicate address" error message appears after the SLB redundancy is configured in Catalyst 6500 series switches running Cisco IOS
Last Reply 6 years 1 month ago.
2005
0.0
0 TCC_2
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