About silvio1989

silvio1989 · ‎10-08-2018

Hello @Tom Randstrom, the FoA says that the connector to the equipment, so the LC or MPO connectors iside the transceiver, needs to be included in the calculation! Wht is the reality!? @CISCO When you provide a transmitter power for a transceiver, this is out of it, so that I am not supposed to include the connector loss, or outside of it so that the connector loss must be included in the link budget. Thank you very much, Silvio

silvio1989 · ‎11-12-2015

Hi Ganesh, thank you for your reply. unfortunately I did not find any information about the traffic growth following the netflow implementation on the suggested document. I would need some examples like: on a catalyst with 10000 flows the traffic increase in respect of the situation prior the netflow configuration is 50Mbps. I found some tables for the CPU increase after the netflow implementation but nothing about the traffic generated. Let me know if you have any neews. Thank you very much, Silvio

silvio1989 · ‎11-11-2015

Hi Alexander, I should configure some netflow commands on a CISCO Catalyst 6509 but I must know previously the traffic increase on the port channels because they are quite busy and I do not want to saturate them. The commands to be implemented are: mls netflow mls nde sender version 5 mls flow ip interface-full mls nde interface mls aging normal 32 mls aging long 64 ! ip flow-export source loopback 20 ip flow-export version 9 ip flow-export destination 145.230.205.85 2055 !! It brings the flows !! thoughtout the port !! Channels ip flow-cache timeout inactive 15 ip flow-cache timeout active 1 ip flow-capture ttl ! interface Vlan879 ip route-cache flow ................. ................. interface Vlan4024 ip route-cache flow I don't know exactly the number of flows because netflow is not configured yet but I can provide you the output of the "sh ip cache verbose flow" of a similar Catalyst with a similar number of VLANs and load of traffic: sh ip cache verbose flow ------------------------------------------------------------------------------- Displaying software-switched flow entries on the MSFC in Module 6: IP packet size distribution (517757545 total packets): 1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480 .000 .412 .124 .009 .010 .431 .002 .001 .000 .000 .000 .000 .000 .000 .000 512 544 576 1024 1536 2048 2560 3072 3584 4096 4608 .000 .000 .000 .001 .001 .000 .000 .000 .000 .000 .000 IP Flow Switching Cache, 278544 bytes 226 active, 3870 inactive, 21874743 added 1256565200 ager polls, 0 flow alloc failures Active flows timeout in 1 minutes Inactive flows timeout in 15 seconds IP Sub Flow Cache, 66760 bytes 452 active, 1596 inactive, 43749486 added, 21874743 added to flow 0 alloc failures, 0 force free 2 chunks, 410 chunks added last clearing of statistics never Can you please provide me an idea of the traffic growth that I can experience in a similar situation? Let me know if you need further information. Thank you very much! Kind regards, Silvio

silvio1989 · ‎11-11-2015

Hi everyone, I must configure the netflow on a CISCO 6509. I would like to have an idea of the additional traffic generated by the netflow for an amount of about 10k flows. I have to export the flows throughtout a port channel quite busy, I don't wanto to saturate it. Let me know if you need further information. Thank you very much, Silvio

silvio1989 · ‎11-11-2015

Hi everyone, I must configure the netflow on a CISCO 6509. I would like to have an idea of the additional traffic generated by the netflow for an amount of about 10k flows. I have to export the flows throughtout a port channel quite busy, I don't wanto to saturate it. Let me know if you need further information. Thank you very much, Silvio

silvio1989 · ‎11-11-2015

Hi everyone, I must configure the netflow on a CISCO 6509. I would like to have an idea of the additional traffic generated by the netflow for an amount of about 10k flows. I have to export the flows throughtout a port channel quite busy, I don't wanto to saturate it. Let me know if you need further information. Thank you very much, Silvio

silvio1989 · ‎11-11-2015

Hi everyone, I must configure the netflow on a CISCO 6509. I would like to have an idea of the additional traffic generated by the netflow for an amount of about 10k flows. I have to export the flows throughtout a port channel quite busy, I don't wanto to saturate it. Let me know if you need further information. Thank you very much, Silvio

silvio1989 · ‎11-11-2015

Hi everyone, I must configure the netflow on a CISCO 6509. I would like to have an idea of the additional traffic generated by the netflow for an amount of about 10k flows. I have to export the flows throughtout a port channel quite busy, I don't wanto to saturate it. Let me know if you need further information. Thank you very much, Silvio

silvio1989 · ‎07-09-2015

Hi all, does a way to solve this bug exist or I am supposed to live side by side with it forever!? Thank you very much. Kind regards, Silvio

silvio1989 · ‎07-09-2015

Hi all, I have configured on some ports belonging to a port-channel of a CISCO Nexus 6004 a threshold for the "storm-control broadcast level" command equal to 20.00. Now I must change this value to 0.5 so that I would like to understand if, decreasing the threshold to this value, I will experiencing a huge amount of dropped-packets. For this reason I would like to know the broadcast-packets number not only during the last five minutes ( value available in the "show int ethx/x/x command" ) but also in the remaining part of the day. In this way I might understand in which part of the day most part of the packets will be discarded. Have you got any idea/command for monitoring the broadcast number of packet during all the day long!? Thank you in advance. Kind regards, Silvio

silvio1989 · ‎06-19-2015

Ah ok! I had not seen the first two lines of your answer.. so... the case is closed! :D Thank you very much!

silvio1989 · ‎06-19-2015

Hi, I hope so.. but how can I justify this behaviour if there is nothing officially related to this bug on CISCO 600 series !?

silvio1989 · ‎06-19-2015

Hi! Exactely! This is the issue! Here there are the output: #sh int gi1/29 GigabitEthernet1/29 is up, line protocol is down (monitoring) Hardware is C6k 1000Mb 802.3, address is 0011.9336.9c44 (bia 0011.9336.9c44) Description: Sonda Shark MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 2/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex, 1000Mb/s input flow-control is off, output flow-control is on Clock mode is auto ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters 6y30w Input queue: 0/2000/12/0 (size/max/drops/flushes); Total output drops: 4 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 8212000 bits/sec, 714 packets/sec 3129242757 packets input, 839789764257 bytes, 0 no buffer Received 13 broadcasts, 0 runts, 0 giants, 0 throttles 12 input errors, 2 CRC, 0 frame, 1195 overrun, 0 ignored 0 input packets with dribble condition detected 6867195564 packets output, 2541371809115 bytes, 0 underruns 4 output errors, 0 collisions, 2 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out #sh int status | i Gi1/29 Gi1/29 Sonda Shark notconnect 1 a-full a-1000/10/100/1000BaseT I have tried to shut/no shut the port, I changed the speed and the duplex but nothing happened.

silvio1989 · ‎06-18-2015

Hi Charles, I have always configured SPAN in this way: monitor session 5 source vlan 1040 , 1064 , 1123 , 1143 , 1163 monitor session 5 destination interface Gi1/29 with interface GigabitEthernet1/29 description Sonda Shark no ip address no snmp trap link-status switchport switchport mode access no cdp enable end I have encountered this issue in the sh int status just this time... The strange thing is that if I do sh int gi1/29 I see "5 minute output rate 40378000 bits/sec, 3346 packets/sec" so I reckon that it is spanning traffic. But why the port is in not connected status!? :O

silvio1989 · ‎06-18-2015

Hi all, I have configured some 6509 ports in SPAN mode with an active monitor session. In particular I have configured one port on a catalyst and another port on another catalyst in order to sniff the traffic passing through this domain (composed by the two 6k). On both catalysts, doing the "sh int gix/x" on the SPAN ports, the "GigabitEthernet1/29 is up, line protocol is down (monitoring)" message appears. By contrast when I do "sh int status" on the first catalyst the SPAN port is in the monitoring status whereas on the second catalyst doing the "sh int status" the SPAN port is in "not connected" status. This port's led is green, the cable is not broken so I would like to know if this second SPAN port is working properly also if the "sh int status" shows the "not connected status". Hoping to have been clear I thank you in advance. Silvio

silvio1989 · 10-08-2018

Hello @Tom Randstrom, the FoA says that the connector to the equipment, so the LC or MPO connectors ...

silvio1989 · 11-12-2015

Hi Ganesh, thank you for your reply. unfortunately I did not find any information about the traffic ...

silvio1989 · 11-11-2015

Hi Alexander, I should configure some netflow commands on a CISCO Catalyst 6509 but I must know prev...

silvio1989 · 11-11-2015