3750 as a router and a switch. sub-optimal routing problem
Objective: To limit the traffic on Vlan8. We are seeing traces from K1 or T1 to 192.168.1.4 like this:
1- 10.10.10.5
2- 10.10.20.1
3- 192.168.1.4
then
1- 10.10.10.4
2- 10.10.30.1
3- 192.168.1.4
or
1- 10.10.10.5
2- 10.10.200.1
3- 192.168.1.4
this causes the packets to travers vlan8 once to get routed by P61B then switched back across to reach the next hop 20.1 or vice versa.
How can we avoid this behavior?
Study the attached drawing carefully. Vlan 8 has 4 routers on it and the 3750s have routes to the 4 networks above them. packets are not routed between the 3750's
Hello Todd,
Could set up a debug ip icmp on the router 192.168.1.4 and ping it from both T-1 and K-1, I think this problem would be more clear to everyone.
If not mabybe you could provide the output of "show ip route" on the routes on this issue,at least on the routers/switch 192.168.1.2 , 192.168.1.3 and 10.10.10.4 and 10.10.10.5 and T-1, K-1.
for routes like 192.168.1.4, 10.10.10.2-5 and 20.20.20.2-3
Hope thats not to much info.
Thanks,
Vlad
Similar Messages
-
Router 2811 and C2960 Switch Trunking Problem
Hi all
I got an problem with a trunking problem between Router 2811 and C2960 switch
In router 2811 - I created f0/0.1 10.65.20.1 (VLAN 1) and f0/0.48 10.65.23.1 (VLAN 48)
In C2960 - Vlan 1 10.65.20.30 , VLAN 48 10.65.23.30
Finally I can only ping VLAN 1 IP but fail to ping VLAN 48 IP, can help me how to troubleshoot it?
Hugo
Router 2811 Configuration:
interface FastEthernet0/0.1
encapsulation dot1Q 1 native
ip address 10.65.20.1 255.255.255.0
interface FastEthernet0/0.48
encapsulation dot1Q 48
ip address 10.65.23.1 255.255.255.0
C2960 Configuration:
interface FastEthernet0/24
switchport mode trunk2811#sh vlans
Virtual LAN ID: 1 (IEEE 802.1Q Encapsulation)
vLAN Trunk Interface: FastEthernet0/0.1
This is configured as native Vlan for the following interface(s) :
FastEthernet0/0
Protocols Configured: Address: Received: Transmitted:
IP 10.65.20.1 388873 262275
Other 0 1723
390760 packets, 71854310 bytes input
263998 packets, 53723195 bytes output
Virtual LAN ID: 48 (IEEE 802.1Q Encapsulation)
vLAN Trunk Interface: FastEthernet0/0.48
Protocols Configured: Address: Received: Transmitted:
IP 10.65.23.1 0 0
Other 0 20
0 packets, 0 bytes input
20 packets, 1883 bytes output
2960_24#sh int trunk
Port Mode Encapsulation Status Native vlan
Fa0/24 on 802.1q trunking 1
Gi0/1 on 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/24 1-4094
Gi0/1 1-4094
Port Vlans allowed and active in management domain
Fa0/24 1,48
Gi0/1 1,48
Port Vlans in spanning tree forwarding state and not pruned
Fa0/24 1,48
Gi0/1 1,48 -
VLAN with 1700 router and Linksys switch
I am trying to use a 1700 router to route between to IP subnets on two different VLANs setup on a Linksys switch. I do not have access to the switch so I am working with another tech that handles the switch. I setup two subinterfaces on the FE port of the router. Int Fa0.1 uses IP 1.1.1.1 and VLAN 1 native using 802.1q. Int Fa0.2 uses IP 2.2.2.2 and VLAN 2. I asked the switch tech to setup his switch accordingly. My problem right now is that the router will only ping IPs on the native VLAN. Meaning if I make Fa0.1 VLAN 1 native I can ping devices on 1.1.1.0/24 and if I make Fa0.2 VLAN 2 native then I can ping on 2.2.2.0/24. When I passed this along to the tech he explains something about setting up his ports for tagged or untagged but I don't know who this would apply to the router but he doesn't have a solution either. Is there anythin I can do on the router side to fix this?
Thanks,
Diegohi,
I've tried connecting cisco to non cisco devices.Tagged ports simply means allowing different vlan to pass to that port and Untagged is passing only the native vlan.For your case since you want that two VLAN will communicate,port should be tagged.Tagged is simply trunking in terms to cisco.So that the 802.1q frames will pass that port. -
Etherchannel between stack switches[3750] and standalone switch[3560]
Hi,
I have 2*3750 switches in stack as core and 1*3560 switch in access layer. I want to enable ether channel between stack switch[3750A & 3750B] and 3560 switches.
Have connected 2 links from 3560 switch to stack switch, one link to 3750A and other link to 3750B. Will it work in this way as per my requirement?
or i should enabled stacking on 3560 switch too and configure cross-stack ether channel between 3750 stack and 3560 stack. i refered few cisco documents, but the cross stack etherchannel configuration example has 3750 at both end stacks.
Rgds...
VikramSHi,
This should work fine as per you set up, the 3750 stack will be acting as one switch, which means that the ether-channel configuration should be straight forward. There is no need to stack the 3560 for this to work, also the 3560 are not stackable.
Hope this helps. -
In a Carrier Ethernet domain,Could someone please help me understand what's the basic difference between Access Switch and Aggregation Switch both in terms of s/w and h/w functionalities. MEF deals OAM,CFM, EVC provisioning only at the access edge switches. Do we need to repeat all these at the aggregation level? or is it just used for routing purpose? Do we have a separate Fault Management at the aggregation level?
Duplicate posts. :P
Go here: https://supportforums.cisco.com/discussion/12137156/what-are-major-differences-between-access-switch-and-aggregation-switch-wrt -
Airport wifi problems with uverse and gigabit switch resolved
I think there is a bug in airport firmware 7.6 with how spanning tree works in addition to problems with the Uverse router. Having an Airport with a uverse 2wire 3801 and gigabit switch will not work. Putting the extreme in NAT mode with DMZ plus behind the uverse resolved the problem.
Network configuration:
Uverse 2wire 3801 router
3801 provides prioritization for upstream traffic so skype and VoIP work better when doing a lot of stuff on Internet
Airport extreme firmware 7.6
two airport express 802.11n hardwired to extreme. Set up in bridge mode. All access points have same SSID "create a network" to enable roaming. Ignore anything to do with extending a network. firmware 7.6
two gigabit switches
Netgear GS608 - 8 port gigabit switch
Trendnet TEG-S80g - 8 port gigabit switch
100BT 5 port switch - did not figure into problem
Three Uverse set top boxes wired on Ethernet. They have to be wire directly to the 2wire box to work correctly. See: http://forums.att.com/t5/Features-and-How-To/At-amp-t-U-Verse-modem-setup-Airpor t-Extreme/td-p/2300785
However, you need to be careful to place your own PCs and other internet devices on the network created by your gear (airport extreme in your case), but keep AT&T's set top boxes for the IPTV services IN FRONT of your own router - so they remain on AT&T's provided network.
So it would work like this ...
Network 1: 2wire RG (4 lan ports) -> Any Set tops, and to the WAN port on your AirportExtreme
Network 2: Airport Extreme LAN ports -> to any computers or internet devices (but not AT&T set top boxes).
The RG prioritizes the traffic for your Uverse Voice and your Uverse TV ahead of internet data traffic, as it rationalizes data heading out of your home. If you place your own equipment in that equation (like putting AT&T set top boxes behind your Airport Extreme) the performance and function of your AT&T set top boxes could really flake out on you.
Symptom:
Everything would be working fine, then intermittently all my wifi access points would stop working. ~6,000 ms latency, dropped packets. Ethernet worked fine. Here is an example of my macbook pinging the extreme when associated with the extreme over wifi with a strong signal.
ping: sendto: Host is down
Request timeout for icmp_seq 23
Request timeout for icmp_seq 24
64 bytes from 192.168.1.64: icmp_seq=25 ttl=255 time=267.051 ms
Request timeout for icmp_seq 26
Request timeout for icmp_seq 27
Request timeout for icmp_seq 28
64 bytes from 192.168.1.64: icmp_seq=26 ttl=255 time=3402.599 ms
Request timeout for icmp_seq 30
Request timeout for icmp_seq 31
Request timeout for icmp_seq 32
64 bytes from 192.168.1.64: icmp_seq=30 ttl=255 time=3060.673 ms
64 bytes from 192.168.1.64: icmp_seq=34 ttl=255 time=24.115 ms
64 bytes from 192.168.1.64: icmp_seq=35 ttl=255 time=31.056 ms
64 bytes from 192.168.1.64: icmp_seq=36 ttl=255 time=39.828 ms
Root cause:
It looks like the 2wire 2801 router has a problem with spanning tree when interoperating with gigabit switches and airports. There is interplay with the airport.
I did not have this problem until the 7.6 airport firmware. I had been using the Netgear hub for about a year with the extreme in bridge mode. I added the Trendnet hub and upgraded airport firmware at the same time which made fault isolation difficult.
Problem recreation:
Set up airport expresses hard wired to extreme
Connect gigabit switch anywhere to network
Everything OK
Dettach one computer from wifi then reattach, then all wifi stops working. It takes a few seconds for the problem to propagate.
Ethernet still works fine
Problem Resolution:
Connect to 2wire with ethernet
Set 2wire route to have subnet as 192.168.2.x
Set extreme in NAT mode behind 2wire. It will complain about double NAT. Override the warning. Set the subnet to 192.168.1.x so you don't have to change any static IP addresses. Note that 2wire uses 192.168.1.254 as default route whereas airport uses 192.168.1.1.
I set DHCP to start at .10 to leave the lower addresses for assigning static IP addresses to computers I want to expose outside the firewall.
Go into firewall settings. Select airport extreme. Select the bottom setting which is "DMZ Plus". When you go into the airport extreme settings, you will now see that it has the uverse public IP address on its WAN port. NAT port mappings work fine on the extreme behind the 2wire router.Keeping this very short here is a summary of the actual problem and solution to allow your Apple Airport Extreme to run in Bridge mode on the same subnet as your uVerse settop boxes (if your Layer 2 switch is configurable).
Devices: Uverse, Cisco SG300, and Airport Extreme
uVerse uses Multicast to broadcast video streams between the uVerse network to the settop box, and from settop box to settop box.
X number of Multicast Groups are created based on X number of settop boxes you have. You can see the multicast definitions by logging into the webinterface of the iNid. Each settop box is a member and can choose to display a broadcasted TV stream or not.
Multicast membership is setup by the use of ICMP messages for IPv4 (MLD for IPv6). Each of the settop boxes become members of each others multicast group by reporting up to the iNid (MultiCast Proxy).
In an ideal world a layer 2 switch will track these memberships and only forward a broadcast packet to the ports on the switch to which the settop boxes are connected to. The switch would do these via snooping on the ICMP packets. Most switches by default do not do this by default and simply forward the broadcast packett out every one of it's switch ports.
Here in lies the problem. Problem is that the Apple AES doesn’t do ICMP snooping / filtering and floods the wireless network with these broadcast streams.
In order to fix this you must turn on ICMP snooping and filtering on the switch (or buy a switch that does this). I have a Cisco SG300 and list out the configuration below.
Other notes:
Ensure that all Media renderers (settop boxes) and servers are wired directly off the switch and not attached to any of the Airport Express ports. This way no media transverses the Airport (only control point traffic goes through the WiFi - which is fine). Obviously if the IGMP snooping switch sees any client requesting Multicast streaming traffic on the same port as the WAP, it will add that Multicast address to the forwarding table for that port, and then, yes it could get flooded.
Remember, you need to allow some Multicast traffic through your WAP to allow UPnP discovery to work (assuming that you will be using Wireless control points.)
Read the Multicast chapter in the SG 300 switch Admin Guide as it explains things very well.
Setting up multicast on the SG300s using the WebUI:
1. Multicast/Properties/
Tick enable Bridge Multicast Filtering Status for VLAN 1, and
set the Forwarding Method to IP Group Address for both IPv4 & IPv6.
2. Multicast/ IGMP snooping/
Tick enable IGMP snooping status then select and edit the entry and ensure that IGMP querier status is ticked.
It's essential for IGMP snooping to work that there must be at least one active IGMP querier on the network - if more than one is enabled, they will carry out an "election" to decide which one should be active (normally the one with the lowest IP address.)
3. Multicast Router Port
Set whichever port that is connected to the uVerse iNid to Status which means that it the uVerse router connected to this port is the Multicast Router
4. Multicast/ Unregistered Multicast
set all ports to Filtering. (The default is Forwarding.)
There are a lot of other variables within all the above - the defaults are OK, you should probably leave them alone!
In the config file you would then expect to see the above appearing as something like this:
ip igmp snooping
ip igmp snooping vlan 1
ip igmp snooping vlan 1 immediate-leave
interface vlan 1
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
interface range gi1-10
bridge multicast unregistered filtering
ip igmp snooping vlan 1 querier
ip igmp snooping vlan 1 querier address <IP-Addr> -
The difference of the IEEE802.1x Auth between Cisco Routers and Catalyst switches
Hello
I am investigating the difference of the IEEE802.1x Auth between Routers and Switches.
Basically dot1x auth is availlable on Catalyst Switches. however if I want to check to
PortBased Multi-Auth , MAC address Auth and any certification Auth with this feature,
Is it possible to integrate into Cisco Router such as Cisco 891F ?
In my opinion Cisco891F is also available to use basic IEEE802.1x but if it compares with Catalyst switches such as Cat3560X
I think there might be any unsupported feature on Cisco 891F.
I appreciate any information. thank you very much in advance.
Best Regards,
Masanobu HiyoshiMany time in interviews asked comaprison between cisco routers and switches that i was answerless bcoz i dont have much knowledge about that.Can anyone provide me the compariosin sheet of the same.how are the cisco devices differ with each other how much Bandwidth each routres support and Etc...
Ummmm ... The most common question I get is "what is the difference between a router and a switch".
However, if you get a question like this, then my impression to this line of questioning are:
1. The candidate they are looking for has in-depth knowledge of routers and switches. And I mean IN-DEPTH!;
2. They are not looking for a candidate. They just want to stroke their ego. There is not alot of people who can give you the "names and numbers" of routers and switches at a snap of a finger. And if you do happen to know the answer, then and there, then expect a tougher follow-up question. -
Internal and external switches on server 2012 r2
this is driving me nuts.
I have a vm with an internal and external switch.
I am trying to get backups to route to the host machine using the internal switch only.
I've gone all over priorities and the routes are all fine but the data will constantly go over the external switch.
If i disable external switch traffic goes over internal switch just fine.
I've read about the automatic detection of least cost routing on the internal switch but just can not get it to run correctly.
please help
DougAll settings below.
backup traffic should run from 192.168.200.4 > 192.168.200.2 over internal NIC
VM Settings
Ethernet adapter Ethernet 3:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Hyper-V Network Adapter #3
Physical Address. . . . . . . . . : 00-15-5D-37-0E-04
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.200.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.240
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Ethernet:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Hyper-V Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-37-0E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.100.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.100.1
DNS Servers . . . . . . . . . . . : 192.168.100.3
NetBIOS over Tcpip. . . . . . . . : Enabled
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.100.1 192.168.100.4 261
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.100.0 255.255.255.0 On-link 192.168.100.4 261
192.168.100.4 255.255.255.255 On-link 192.168.100.4 261
192.168.100.255 255.255.255.255 On-link 192.168.100.4 261
192.168.200.0 255.255.255.240 On-link 192.168.200.4 276
192.168.200.4 255.255.255.255 On-link 192.168.200.4 276
192.168.200.15 255.255.255.255 On-link 192.168.200.4 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.100.4 261
224.0.0.0 240.0.0.0 On-link 192.168.200.4 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.100.4 261
255.255.255.255 255.255.255.255 On-link 192.168.200.4 276
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 192.168.100.1 Default
===========================================================================
HOST Settings
Ethernet adapter vEthernet (Internal-NIC):
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter #2
Physical Address. . . . . . . . . : 00-15-5D-37-0E-02
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::744b:bbc1:e067:5592%48(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.200.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.240
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 805311837
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-15-79-97-A0-D3-C1-05-24-BF
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Ethernet Host:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331FLR Adapter #4
Physical Address. . . . . . . . . : A0-D3-C1-05-24-BF
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::3412:1255:61dc:3e3c%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.100.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.100.1
DHCPv6 IAID . . . . . . . . . . . : 211866561
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-15-79-97-A0-D3-C1-05-24-BF
DNS Servers . . . . . . . . . . . : 8.8.8.8
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Ethernet Host:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331FLR Adapter #4
Physical Address. . . . . . . . . : A0-D3-C1-05-24-BF
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::3412:1255:61dc:3e3c%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.100.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.100.1
DHCPv6 IAID . . . . . . . . . . . : 211866561
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-15-79-97-A0-D3-C1-05-24-BF
DNS Servers . . . . . . . . . . . : 8.8.8.8
NetBIOS over Tcpip. . . . . . . . : Enabled
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.100.1 192.168.100.2 276
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
169.254.0.0 255.255.0.0 On-link 169.254.45.46 276
169.254.45.46 255.255.255.255 On-link 169.254.45.46 276
169.254.255.255 255.255.255.255 On-link 169.254.45.46 276
192.168.100.0 255.255.255.0 On-link 192.168.100.2 276
192.168.100.2 255.255.255.255 On-link 192.168.100.2 276
192.168.100.255 255.255.255.255 On-link 192.168.100.2 276
192.168.200.0 255.255.255.240 On-link 192.168.200.2 261
192.168.200.2 255.255.255.255 On-link 192.168.200.2 261
192.168.200.15 255.255.255.255 On-link 192.168.200.2 261
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 169.254.45.46 276
224.0.0.0 240.0.0.0 On-link 192.168.100.2 276
224.0.0.0 240.0.0.0 On-link 192.168.200.2 261
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 169.254.45.46 276
255.255.255.255 255.255.255.255 On-link 192.168.100.2 276
255.255.255.255 255.255.255.255 On-link 192.168.200.2 261
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 192.168.100.1 Default
Doug Hardy -
Help me to choose Right Core switches and Edge switches as per my Spec
Dear All
Please help me to choose Core and Edge switches and all required hard ware and software.
the spec details as per below
Core Switches
1. High performance, highly scalable core switch to provide multi-10GE connectivity to various segments in the network.
2. Switch should have redundant switch fabric and routing engines or management / supervisor modules
3.should have separate control and forwarding planes
4.Each switch should have redundant power supplies in N+N or N+1 fashion
5. Must allow for two spare slots once services, management, processing modules and line cards populated
6. Easy to manage firmware- i.e. single code type enterprise/service provider) or train, and robust operating system
7. Supports for the VRRP, NSR, GRES, BFD, STP, MSTP, RSTP, VSTP, LACP redundancy protocols
8. Hot plugging and removal
9. The switch should have native switching architecture with up to sufficient performance such that the loss of one switching fabric should not lead to degraded performance
10. Switch should support switching at least 400Mpps
11. Switch should be able to support 40 10Gig line rate ports in a fully redundant configuration
12. Chassis that can scale to 700 Gbps
13. The proposed Backbone switch should support, but not be limited to the following Layer 3 features:
Static ip routing
Routing information protocol (RIP) and RIP2
Open shortest path first (OSPF)
IGMP v1, v2 and v3
IGMP Snooping
IP multicast routing protocol
14. The switch should support the following features at a minimum:
Spanning Tree 802.1D, 802.1S, 802.1W
GVRP
802.1x single and multi-supplicant: VLAN and ACL assignment
Dynamic ARP Inspection (DAI), DHCP snooping, IP Source gurard
LLDP, LLDP-MED
802.3X, 802.3ad
Redundant Trunk Group (RTG)
IGMP snooping
Unicast static, OSPF v1/v2, RIP v1/v2
Multicast IGMPv1/v2, PIM
Graceful Route Engine SwitchoverI have gone through your document and I am surprised to see MORE information in the document than what you've posted. I am so mildly suspicious about the authenticity of the document and spreadsheet you've attached.
So far, based on this document, the client wants a chassis that can support up to 700 Gbps backplane. The only candidate, other than a full-blown Nexus solution, is the 6807-X.
Next, the document also states dual supervisor card with two spare slots. Good luck trying to get that much empty space on a 6807-X. This means 6509E. You can't use a 6513E because of line-card-to-slot limitation.
If you look under the heading "Edge Switching", the first sentence already makes references to 6800ia switch.
There's also a reference stating that the product should have a 100 Gbps backplane. You can take the 6509E chassis out of the equation.
So you see, I am suspicious about the authenticity of the document. I agree with mali's and devil's recommendation that if you are serious, you would be engaging Cisco SE/AM in your region. There are only three reasons, that I can think of, why you've posted this here. One of them is the intended purpose of this document (and the audience). -
Cisco and Huawei switch compatibility
Hi all. In our company we are going to implement VoIP in our regional offices were all the networking equipment is Cisco. We were thinking of using Huawei 8 port PoE switches to which we would connect our Cisco phones and then connect the Huawei switch to the Cisco switch using a trunk.
I was wondering if anyone has experience connecting Cisco and Huawei switches? Are there known problems interconnecting these switches and what should I pay attention to on the Cisco side of things?
We mostly deal with Cisco equipment in our company so connecting/configuring Huawei switches is something new for us.
Thanks in advance for any help.Hi Igor,
As Glen indicated , the main problem is spanning tree. Huawei switches use mstp where cisco has pvst by default.
The other problem is qos on switch ports for IP Phones. Cisco Switches automatically discover and configure some settings for IP Phones but Huawei will not do any of these by default.
If you are planning to use some L3 configuration on Huawei switches be sure that their administrative distances differ from Cisco.For example , static routes have admin distance of 60 :) Also routing protocols have different admin distances as well.
There are many differences on MPLS functions as well , but I guess they are all out of your scope.
Please let me know if you need further information.
Hope to help,
Kerem -
375o switch in stack, only 2nd and 3rd switch reboots
Hi,
In customer place we are having three 3750 switch and it was stacked and working fine. Few days back the in stacked switches 2nd and 3rd switches are rebooted continuously and found in the show version command as: Data TLB Miss Exception (0x1100)!.
From last 4 days we are not found any reboot. Please let us know any software bug is triggered to cause this problem, if upgraded please let us know the image to be put in all the three switches. I am sending the show tech output of all the 3 switches and show stack output.
Thanks in advance.
Regards,
RamThis URL should help you:
http://www.cisco.com/en/US/products/hw/switches/ps5023/prod_release_note09186a00801b476a.html -
Hello,
Quick question, does a Cisco 3750 switch support store and forward switching? If so, is it default? If not, is there a command for it?
I know the 3550's support S&F as default and if the 3750's do then it may resolve my issue.
Thanks
WayneThanks Bobby. In terms of raw switching is there any other differences between the 3550 and 3750?
The reason I ask is I ran a BERT test on two pieces of equipment over a 3750 and it fails the test. Over a 3550 is passes.
Both switches have an IP address for VLAN 1 and portfast and that's it, can't be simpler.
I'm just wondering whether something is on as default on the 3550 but off as default on the 3750????????
Many thanks,
Wayne -
I am having difficulty XMIT/REC text messages to family members using Android phones? I have a 3GB data plan and all switches and buttons are set properly. Any suggestions?
Hello APVzW, we absolutely want the best path to resolution. My apologies for multiple attempts of replacing the device. We'd like to verify the order information and see if we can locate the tracking number. Please send a direct message with the order number so we can dive deeper. Here's steps to send a direct message: http://vz.to/1b8XnPy We look forward to hearing from you soon.
WiltonA_VZW
VZW Support
Follow us on twitter @VZWSupport -
My switch Linksys srw224g4 has problem and I need someone help
Hello,
My switch Linksys srw224g4 has problem that it keeps rebooting continuously and cannot bootup successfuly. Can someone tell me how to fix this problem? Firmware version is 1.2.2b , boot version is 1.0.2
Here is console capture:
==================
------ Performing the Power-On Self Test (POST) ------
UART Channel Loopback Test........................PASS
Testing the System SDRAM..........................PASS
Boot1 Checksum Test...............................PASS
Boot2 Checksum Test...............................PASS
Flash Image Validation Test.......................PASS
BOOT Software Version 1.0.2 Built 17-Aug-2006 14:55:46
Linksys SmartSwitch based on 88E6218 with ARM946E-S.
32MByte SDRAM. I-Cache 8 KB. D-Cache 8 KB. Cache Enabled.
Autoboot in 2 seconds - press RETURN or Esc. to abort and enter prom.
Preparing to decompress...
100%
Decompressing SW from flash
100%
OK
Running from RAM...
*** Running SW Ver. 1.2.2b Date 20-Mar-2007 Time 11:44:49 ***
HW version is 00.03.00
Base Mac address is: 00:1d:7e:74:b6:14
Dram size is : 32M bytes
Dram first block size is : 16969K bytes
Dram first PTR is : 0xF6D840
Flash size is: 8M
01-Jan-2000 01:01:02 %CDB-I-LOADCONFIG: Loading startup configuration.
LZMA: Decompressing file failed!
HOSTG_rscode_file_load: could not load file
Device configuration:
Slot 1 - SRW24F4G HW Rev. 0.2
Tapi Version: v1.3.3.1
Core Version: v1.3.3.1
01-Jan-2000 01:01:09 %SYSLOG-F-OSFATAL:
L FATAL ERROR: ROOT: ABORT DATA exception
***** FATAL ERROR *****
SW Version : 1.2.2.16
Version Date: 20-Mar-2007
Version Time: 11:44:49
Instruction 0x121fc0
Exception vector 0x10
Program state register 0x20000013
***************** SYSTEM RESET *****************
------ Performing the Power-On Self Test (POST) ------
UART Channel Loopback Test........................PASS
Testing the System SDRAM..........................PASS
Boot1 Checksum Test...............................PASS
Boot2 Checksum Test...............................PASS
Flash Image Validation Test.......................PASS
BOOT Software Version 1.0.2 Built 17-Aug-2006 14:55:46
Linksys SmartSwitch based on 88E6218 with ARM946E-S.
32MByte SDRAM. I-Cache 8 KB. D-Cache 8 KB. Cache Enabled.
Autoboot in 2 seconds - press RETURN or Esc. to abort and enter prom.
Preparing to decompress...
100%
Decompressing SW from flash
100%
OK
Running from RAM...
*** Running SW Ver. 1.2.2b Date 20-Mar-2007 Time 11:44:49 ***
HW version is 00.03.00
Base Mac address is: 00:1d:7e:74:b6:14
Dram size is : 32M bytes
Dram first block size is : 16969K bytes
Dram first PTR is : 0xF6D840
Flash size is: 8M
01-Jan-2000 01:01:02 %CDB-I-LOADCONFIG: Loading startup configuration.
LZMA: Decompressing file failed!
HOSTG_rscode_file_load: could not load file
DelScr fatal Error: Invalid Variant type01-Jan-2000 01:01:03 %SYSLOG-F-OSFATAL: DelScr fatal Error
***** FATAL ERROR *****
Reporting Task: ROOT.
Software Version: 1.2.2b (date 20-Mar-2007 time 11:44:49)
***************** SYSTEM RESET *****************
Thanks,
TienHi,
Please follow the steps in this link to reload the image:
http://www.cisco.com/en/US/products/ps9967/products_qanda_item09186a0080a36371.shtml
And this is the link to download boot code 1.00.86:
http://ip.gliebetronics.com:800/firmware/Linksys%20SRW2024/Firmware/
Hope this help. -
I am a new mac user and I switch to mac due to the graphics that it brings. I do website in pc and I heard iweb is the best.NOW i heard that iweb will be discontinue. so what is the best application there for website using MAC OSX lion?
It is now confirmed that iWeb, and iDVD, has been discontinued by Apple. This is evidenced by the fact that new Macs are shipping with iLife 11 installed but without iWeb and iDVD.
On June 30, 2012 MobileMe will be shutdown. However, iWeb will still continue to work but without the following:
Features No Longer Available Once MobileMe is Discontinued:
◼ Password protection
◼ Blog and photo comments
◼ Blog search
◼ Hit counter
◼ MobileMe Gallery
All of these features can be replaced with 3rd party options.
I found that if I published my site to a folder on my hard drive and then uploaded with a 3rd party FTP client subscriptions to slideshows and the RSS feed were broken. If I published directly from iWeb to the FPT server those two features continued to work correctly.
There's another problem and that's with iWeb's popup slideshows. Once the MMe servers are no longer online the popup slideshow buttons will not display their images.
Click to view full size
However, Roddy McKay and I have figured out a way to modify existing sites with those slideshows and iWeb itself so that those images will display as expected once MobileMe servers are gone. How to is described in this tutorial: #26 - How to Modify iWeb So Popup Slideshows Will Work After MobileMe is Discontinued.
It now appears that the iLife suite of applications offered on disc is now a discontinued product and the remaining supported iApps will only be available thru the App Store from now on. However, the iLife 11 boxed version that is still available at the online Apple Store (Store button at the top of the page) and those still on the shelves of retailers will include iWeb and iDVD. Those two apps were listed in small, gray text on the iLife 11 box that I bought.
Personally, if I didn't already have a copy I would purchase one to have it for reinstallation purposes if ever needed.
This might be of some interest to you at this time: Life After MobileMe.
OT
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