Re: [c-nsp] switch with 2x 10GBASE-T interfaces
Martin, Yes, you right, my mistake, we are using C3KX-NM-10G, and at time when we bough it there no C3KX-NM-10GT modules, so I automatically think them. You probably won't able to do so, because we even had problems with size of regular SFP(not rj45) on C3KX-NM-10G, so we had to replace them from different company. And from what I see sfp on 3750X-24S-S sit to each other very closely same as on C3KX-NM-10G. Can't say anything about 4900 series. On 02.10.2011 5:33, Martin T wrote: Nikolay, I'm afraid you are confusing this with C3KX-NM-10G module. Check the table 3. C3KX-NM-10GT module is strictly 2x 10GBASE-T RJ45 ports(image of the C3KX-NM-10GT: http://mcaf.ee/0bjty). In general, WS-C3750X-24S-S + C3KX-NM-10GT seems to be a perfect solution. WS-C3750X-24S-S has an IP Base image, which is enough because I don't need advanced L3 features like EIGRP, OSPF, BGP and IPv6 routing provided by IP Services. WS-C3750X-24S-S is easily upgradable thanks to StackWise Plus and StackPower technologies. Supports dual redundant power supplies and in overall is a nice 1U feature-rich switch according to specifications. Just one hesitation with WS-C3750X-24S-S..is it possible to insert 1000BASE-T SFP's to first 22 ports(I would use last two SFP ports for 1000BASE-LX10 SFP's)? I mean 1000BASE-T SFP's have RJ45 connector which is bit bulky and I'm not sure if it's possible to physically insert 1000BASE-LX10 SFP's besides each other? Any experience with this? In addition, as I checked the 4900 series as well, do built in X2 ports(the ones in the chassis http://mcaf.ee/us1dt) in 4900M support TwinGig Converter Module? According to documentation they don't. Any experience with this? regards, martin 2011/10/1 Nikolay Shopiksho...@inblock.ru: Martin, C3KX-NM-10GT allow you to install only two 10Gb SFP+ or 4 1Gbit SFP, or just ony 10Gbit SFP+ plus 2 1Gbit SFP. You can take look here http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/data_sheet_c78-584733.html at table 4. On 30.09.2011 23:44, Martin T wrote: Alan, Arne: WS-C3750X-24S-E + C3KX-NM-10GT seems to be a perfect solution! WS-C3750X-24S-E has 24 SFP ports so one could use 12 1000BASE-T SFP's + 2 1000BASTE-LX10 SFP's and C3KX-NM-10GT module provides two 10GBASE-T ports so all the requirements seems to be fulfilled. Jim, I'm afraid WS-C4928-10GE would not suite because two 10GBASE-T ports are must-have. If there would be 10GBASE-T X2 modules available, this switch would be a nice option. Kevin, if possible, I would prefer Cisco. What do you think about WS-C3750X-24S-E + C3KX-NM-10GT solution? In addition, are there 10GBASE-T SFP+ modules available on the market(Cisco or third-party)? regards, martin 2011/9/30 Kevin Lochkl...@kl.net: Martin T wrote: Is there a Cisco switch(non-modular preferably) which fulfils those requirements: 1) 12 or more 1000BASE-T ports 2) 2x SFP port for 1000BASE-LX10 SFP's 3) 2x 10GBASE-T ports(for IBM 10Gb iSCSI Host Interface Card 81Y9613, which has two 10GBASE-T interfaces) It's not Cisco but Dell 6248 does have a 2 port 10Gbase-T module option. The onboard SFP ports will accept any generic 1G SFP's (for your LX10 optics). - Kevin ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] pppoe-link
| upstream ISP || Fibre Link |--| downstream ISP (gw rt) | Fibre link (1 line) is divided into 3 VLANS 1 vlan for internet bandwidth (wan ip from upstream ISP 1 vlan for DSL bandwidth (wan ip from upstream ISP) 1 vlan (l2tp link) for PPPOE from their VPLS network; no wan ips on this; the link terminates at downstream ISP gw router problem: there is no wan ip on the PPPoe link how a PPPoe server can be answering the DSL client; how can this particular link can be connected to the downstream ISP network; anybody has got any ideas ? thanks ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] pppoe-link
I am not completely sure about the PPPoE model you have as you mention 2 different things: - L2TP - VPLS If you get a L2 circuit (VPLS) with no IP configured on it, and you terminate PPPoE sessions on your router, then this is not L2TP, but regular PPPoE. PPPoE is a L2 protocol which runs directly over Ethernet and does not require an IP layer (the customer does not get an IP address before the PPP layer assigns it). With L2TP you would have an IP based tunnel from the SP, while they terminate the PPPoE session, and they would tunnel it to your LNS. In that case the LAC (SP BRAS) has to have IP connectivity to your LNS device. Arie -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of K bharathan Sent: Sunday, October 02, 2011 11:40 To: cisco-nsp@puck.nether.net Subject: [c-nsp] pppoe-link | upstream ISP || Fibre Link |--| downstream ISP | (gw rt) | Fibre link (1 line) is divided into 3 VLANS 1 vlan for internet bandwidth (wan ip from upstream ISP 1 vlan for DSL bandwidth (wan ip from upstream ISP) 1 vlan (l2tp link) for PPPOE from their VPLS network; no wan ips on this; the link terminates at downstream ISP gw router problem: there is no wan ip on the PPPoe link how a PPPoe server can be answering the DSL client; how can this particular link can be connected to the downstream ISP network; anybody has got any ideas ? thanks ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Huawei NE40E-X3 vs Cisco AS9K
Consider Brocade MLX or MLXe Krunal On Wed, Sep 28, 2011 at 2:56 AM, Manuel Marín m...@transtelco.net wrote: Hi We are currently looking for alternatives to upgrade cisco 76XX routers and we are comparing Huawei NE40E-X3 vs Cisco ASR9K. I was wondering if someone can share their experience with Huawey routers as Core MPLS routers. Any advice would be greatly appreciated Thanks ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] C7600 vs. ASR 9000
Hi, Any opinion which one is the better choice for a core network ? How much different is OS on ASR 9000 in comparizon to IOS ? If I know IOS there is no problem to operate it ? Assuming that I need MPLS, VPLS, H-QOS ... and of course the most important is stable, stable ... and reliable device ! Thanks in advance, Regards, grzybek ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] pppoe-link
On Sun, Oct 2, 2011 at 2:48 PM, Arie Vayner (avayner) avay...@cisco.comwrote: I am not completely sure about the PPPoE model you have as you mention 2 different things: - L2TP - VPLS If you get a L2 circuit (VPLS) with no IP configured on it, and you terminate PPPoE sessions on your router, then this is not L2TP, but regular PPPoE. PPPoE is a L2 protocol which runs directly over Ethernet and does not require an IP layer (the customer does not get an IP address before the PPP layer assigns it). With L2TP you would have an IP based tunnel from the SP, while they terminate the PPPoE session, and they would tunnel it to your LNS. In that case the LAC (SP BRAS) has to have IP connectivity to your LNS device. Arie -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of K bharathan Sent: Sunday, October 02, 2011 11:40 To: cisco-nsp@puck.nether.net Subject: [c-nsp] pppoe-link | upstream ISP || Fibre Link |--| downstream ISP | (gw rt) | Fibre link (1 line) is divided into 3 VLANS 1 vlan for internet bandwidth (wan ip from upstream ISP 1 vlan for DSL bandwidth (wan ip from upstream ISP) 1 vlan (l2tp link) for PPPOE from their VPLS network; no wan ips on this; the link terminates at downstream ISP gw router problem: there is no wan ip on the PPPoe link how a PPPoe server can be answering the DSL client; how can this particular link can be connected to the downstream ISP network; anybody has got any ideas ? thanks ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ thanks but what is the difference between regular PPPOE and L2TP; it seems i've to get more clarity from SP; but this given VLAN doe sn't have any IP; find difficulty to set a gw for the PPPoe server (NAS on cisco 2900 ISR router)sitting in the LAN ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] Large number of arp entries on 2960G
Hi Guys, Running a management vlan(11) on a 2960S stack-2960G-7200 + 2509(for OOB) - i.e. 4 IP's sh arp on 2960s, shows 3 entries (int vlan11)sh arp on 2509, shows 3 entries (int eth0)sh arp on 7200, shows 4 entries(on dot1q vlan 11)sh arp on 2960g, shows over 1000 entries, all with the 7200's mac address, all on interface vlan11 - all entries appear to be random IP's, in that they are routes(IP's) learned from upstream bgp peering sessions and also some from our internal ospf...none of these bgp sessions or ospf are running in dot1q vlan11 The only difference I can see on the 2 switches vlan interfaces is the 2960g(The one with all the strange arp entries) has no ip route-cache. Any suggestions as to what could be causing this? Cheers. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Large number of arp entries on 2960G (Solved)
Found the issue - The 2960g was missing default gw of the 7200. From: johnellio...@hotmail.com To: cisco-nsp@puck.nether.net Date: Mon, 3 Oct 2011 13:09:49 +1100 Subject: [c-nsp] Large number of arp entries on 2960G Hi Guys, Running a management vlan(11) on a 2960S stack-2960G-7200 + 2509(for OOB) - i.e. 4 IP's sh arp on 2960s, shows 3 entries (int vlan11)sh arp on 2509, shows 3 entries (int eth0)sh arp on 7200, shows 4 entries(on dot1q vlan 11)sh arp on 2960g, shows over 1000 entries, all with the 7200's mac address, all on interface vlan11 - all entries appear to be random IP's, in that they are routes(IP's) learned from upstream bgp peering sessions and also some from our internal ospf...none of these bgp sessions or ospf are running in dot1q vlan11 The only difference I can see on the 2 switches vlan interfaces is the 2960g(The one with all the strange arp entries) has no ip route-cache. Any suggestions as to what could be causing this? Cheers. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Large number of arp entries on 2960G
On 03/10/2011, at 1:09 PM, John Elliot wrote: interface vlan11 - all entries appear to be random IP's, in that they are routes(IP's) learned from upstream bgp peering sessions and also some from our internal ospf...none of these bgp sessions or ospf are running in dot1q vlan11 Smells like one of the devices is doing Proxy ARP. This is usually bad, particularly if its trying to ARP for all hosts on the Internet - will drive up CPU and memory usage. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Large number of arp entries on 2960G (Solved)
Thanks(everyone) - The 7200 has a number of dot1q subints, can I disable proxy arp on the physical gig int(i.e. will this apply the setting to all the dot1q ints), or must it be disabled on all dot1q subints? Subject: Re: [c-nsp] Large number of arp entries on 2960G (Solved) From: l...@cisco.com Date: Mon, 3 Oct 2011 13:27:08 +1100 CC: cisco-nsp@puck.nether.net To: johnellio...@hotmail.com On 03/10/2011, at 1:23 PM, John Elliot wrote: Found the issue - The 2960g was missing default gw of the 7200. suggest you disable proxy arp on whatever the offending device(s) are too. thats papering over what the root problem is.. cheers, lincoln. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Cisco and third party transceivers
On Tue, Sep 27, 2011 at 1:17 PM, Martin T m4rtn...@gmail.com wrote: Hello, there are providers like Flexoptix(http://www.flexoptix.net) who are able to flash SFP EEPROM memory with different vendor data, probably set custom serial numbers etc. However, why is such service needed at nowadays for Cisco equipment? Every router/switch I have seen supports the service unsupported-transceiver(should turn of checking the Cisco Quality ID) and no errdisable detect cause gbic-invalid commands and thus doesn't check the ID code in EEPROM.. In addition, am I correct, that some old Cisco IOS versions did not have the service unsupported-transceiver and no errdisable detect cause gbic-invalid commands and thus one really was forced to use transceivers with Cisco serials? Some ASAs won't take some 3rd party transceivers no matter what voodoo you type, as far as I've been able to figure out anyway. It really depends on your business model so to speak. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
