Hi everybody, I was doing some configurations using Nexus 7k with OSPF and I saw a point that I wasn't able to find a document with an answer for this. I know that OSPF in NX-OS has its peculiarities, but I trying to figure out the lack of the Routing Bit Set information on the LSA output command. Below, we can see the outputs: N7K-01# sh ip route 10.0.11.0 IP Route Table for VRF "default" '*' denotes best ucast next-hop '**' denotes best mcast next-hop '[x/y]' denotes [preference/metric] '%<string>' in via output denotes VRF <string> 10.0.11.0/24, ubest/mbest: 1/0 *via 10.19.0.1, Po21, [110/20], 1w0d, ospf-10, type-2 -------------- N7K-01# sh ip ospf database external 10.0.11.0 OSPF Router with ID (10.19.0.2) (Process ID 10 VRF default) Type-5 AS External Link States Link ID ADV Router Age Seq# Checksum Tag 10.0.11.0 10.19.0.1 852 0x8000048f 0xcd67 0 -------------- N7K-01# sh ip ospf database external 10.0.11.0 detail OSPF Router with ID (10.19.0.2) (Process ID 10 VRF default) Type-5 AS External Link States LS age: 855 Options: 0x2 (No TOS-capability, No DC) LS Type: Type-5 AS-External Link State ID: 10.0.11.0 (Network address) Advertising Router: 10.19.0.1 LS Seq Number: 0x8000048f Checksum: 0xcd67 Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 20 Forward Address: 10.7.19.6 External Route Tag: 0   This is a normal behaviour from NX-OS? We should expect this? If we compare with IOS, we can see something like that:   R1#sh ip ospf data ex 10.10.4.0 OSPF Router with ID (10.10.12.1) (Process ID 1) Type-5 AS External Link States Routing Bit Set on this LSA LS age: 243 Options: (No TOS-capability, DC) LS Type: AS External Link Link State ID: 10.10.4.0 (External Network Number ) Advertising Router: 10.10.23.3 LS Seq Number: 80000002 Checksum: 0xF66E Length: 36 Network Mask: /24 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 1 Forward Address: 10.10.234.4 External Route Tag: 0   Thank you very much in advance. Regards, Plínio     ... View more

Hi Community, I'm facing some problems and I'd like to share with you to check if my understand is correct or not. I'm attaching the topology to help with the understanding. In normal situation, traffic is able to pass from the 5K to the 6500. However, if the active uplink goes down I was also expecting traffic to pass over the link that connects the two 5Ks, but this is not happening. In other words, if the traffic goes through from SRV-B- -> N5k2 -> 6k5-2 -> SRV-C everything works fine. If the traffic goes through SRV-A -> N5k1 -> N5k2 -> 6k5-2 -> SRV-C or SRV-B -> N5k2 -> N5k1 -> SRV-A we face the problem. On both directions. If I change the root priority for 6k1, traffic SRV-A- -> N5k1 -> 6k5-1 -> 6k5-2 -> SRV-C works fine. My understanding is that the traffic that throughout the vPC Peer Link isn’t completing. We are testing from a server on the Enclosure to a Server outside of Nexus ambient. On both directions the problem persists. If I change the root priority to a vlan doing the traffic go “ahead” without pass by the vPC Peer link, works. If I removed the vPC Peer link configuration and configure a simple trunk between both N5k, everything works. According to this document, Orphan ports can communicate between vPC Peer Link. http://www.cisco.com/en/US/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf So, what can be happening? Thank you in advance. N5k1-config N5k1# sh run !Command: show running-config !Time: Thu Aug 29 19:23:19 2013 version 5.1(3)N2(1) feature telnet no feature http-server feature tacacs+ cfs eth distribute feature udld feature interface-vlan feature hsrp feature lacp feature vpc logging level vpc 6 feature lldp feature fex ! spanning-tree port type edge bpduguard default ! vpc domain 50   role priority 50   peer-keepalive destination 10.251.32.12 source 10.251.32.11   delay restore 360   auto-recovery   ip arp synchronize interface port-channel5   description ### PEER-LINK 5kA-to-5kB ###   switchport mode trunk   spanning-tree port type network   speed 10000   vpc peer-link interface Ethernet1/17   description ### Uplink_to_Enclosure-03 ###   switchport mode trunk   switchport trunk allowed vlan 4-7,9,17,40,80-81,115 interface Ethernet1/18   description ### Uplink_to_Enclosure-03 ###   switchport mode trunk   switchport trunk allowed vlan 4-7,9,17,40,80-81,115 interface Ethernet1/28   description ### Uplink_to_6K5-1 ###   switchport mode trunk   switchport trunk allowed vlan 4-7,9,17,40,80-81,115 interface Ethernet1/29   switchport mode trunk   channel-group 5 mode active interface Ethernet1/30   switchport mode trunk   channel-group 5 mode active N5k2-config N5k2# sh run !Command: show running-config !Time: Thu Aug 29 19:23:19 2013 version 5.1(3)N2(1) feature telnet no feature http-server feature tacacs+ cfs eth distribute feature udld feature interface-vlan feature hsrp feature lacp feature vpc logging level vpc 6 feature lldp feature fex ! spanning-tree port type edge bpduguard default ! vpc domain 50   role priority 100   peer-keepalive destination 10.251.32.11 source 10.251.32.12   delay restore 360   auto-recovery   ip arp synchronize interface port-channel5   description ### PEER-LINK 5kB-to-5kA ###   switchport mode trunk   spanning-tree port type network   speed 10000   vpc peer-link interface Ethernet1/15   description ### Uplink_to_Enclosure-02 ###   switchport mode trunk   switchport trunk allowed vlan 4-7,9,17,40,80-81,115 interface Ethernet1/16   description ### Uplink_to_Enclosure-02 ###   switchport mode trunk   switchport trunk allowed vlan 4-7,9,17,40,80-81,115 interface Ethernet1/28   description ### Uplink_to_6K5-2 ###   switchport mode trunk   switchport trunk allowed vlan 4-7,9,17,40,80-81,115 interface Ethernet1/29   switchport mode trunk   channel-group 5 mode active interface Ethernet1/30   switchport mode trunk   channel-group 5 mode active ... View more

Hi community, We are facing some problems with our CPI 1.3. The software suddenly stopped responding. We already tried to restart the service and the machine without success. The following message was shown when we tried to start NCS: gn827cb/admin# application start NCS Purging PurgeSAMPollerRecods {Mon May 20 11:19:20 BRT 2013} =================================================== {Mon May 20 11:19:20 BRT 2013} =========Issuing dbadmin -v start================= {Mon May 20 11:19:21 BRT 2013} =======executing delete sql script sam_poller_jobs_cleanup.sql==== {Mon May 20 11:30:10 BRT 2013} ==========Issuing dbadmin -v stop================= {Mon May 20 11:30:13 BRT 2013} =================================================== Completed purging SAMPoller Records Starting Network Control System... This may take a few minutes... Failure during Network Control System startup.  Check launchout.log for details. start gn827cb/admin# We also got this message: gn827cb/admin# sh application status NCS Health Monitor is running, with an error. initHealthMonitor(): can not start DB Reporting Server is Stopped Ftp Server is Stopped Database server is stopped Tftp Server is Stopped Matlab Server is Stopped NMS Server is stopped. SAM Daemon is not running ... DA Daemon is not running ... Syslog Daemon is not running ... status gn827cb/admin# Any idea how can I solve this? I'm also trying to open a case with Cisco, but they ask me about SN, and I'm using a VM/OVA deployment. I don't know how to find it. I also checked that we have a problem with space: ***************************************** Checking Disk Space... ***************************************** df -h output... Filesystem            Size  Used Avail Use% Mounted on /dev/mapper/smosvg-rootvol                       3.8G  285M  3.4G   8% / /dev/mapper/smosvg-storeddatavol                       9.5G  151M  8.9G   2% /storeddata /dev/mapper/smosvg-localdiskvol                        29G  173M   27G   1% /localdisk /dev/sda2              97M  5.6M   87M   7% /storedconfig /dev/mapper/smosvg-home                        93M  5.6M   83M   7% /home /dev/mapper/smosvg-optvol                       120G  119G     0 100% /opt /dev/mapper/smosvg-varvol                       3.8G  117M  3.5G   4% /var /dev/mapper/smosvg-usrvol                       6.6G  1.2G  5.1G  19% /usr /dev/mapper/smosvg-tmpvol                       1.9G   35M  1.8G   2% /tmp /dev/mapper/smosvg-recvol                        93M  5.6M   83M   7% /recovery /dev/mapper/smosvg-altrootvol                        93M  5.6M   83M   7% /altroot /dev/sda1             485M   18M  442M   4% /boot tmpfs                 3.9G     0  3.9G   0% /dev/shm df -k output... Filesystem           1K-blocks      Used Available Use% Mounted on /dev/mapper/smosvg-rootvol                        3967680    291476   3471404   8% / /dev/mapper/smosvg-storeddatavol                        9903432    153700   9238552   2% /storeddata /dev/mapper/smosvg-localdiskvol                       29741864    176224  28030460   1% /localdisk /dev/sda2                99150      5688     88342   7% /storedconfig /dev/mapper/smosvg-home                          95195      5657     84623   7% /home /dev/mapper/smosvg-optvol                      125157140 124238476         0 100% /opt /dev/mapper/smosvg-varvol                        3967680    119396   3643484   4% /var /dev/mapper/smosvg-usrvol                        6919612   1227320   5335124  19% /usr /dev/mapper/smosvg-tmpvol                        1967952     35816   1830556   2% /tmp /dev/mapper/smosvg-recvol                          95195      5664     84616   7% /recovery /dev/mapper/smosvg-altrootvol                          95195      5664     84616   7% /altroot /dev/sda1               495844     17643    452601   4% /boot tmpfs                  4021724         0   4021724   0% /dev/shm df -k output for / /usr /var /opt Filesystem           1K-blocks      Used Available Use% Mounted on /dev/mapper/smosvg-rootvol                        3967680    291476   3471404   8% / /dev/mapper/smosvg-usrvol                        6919612   1227320   5335124  19% /usr /dev/mapper/smosvg-varvol                        3967680    119396   3643484   4% /var /dev/mapper/smosvg-optvol                      125157140 124238476         0 100% /opt ***************************************** Thank you in advance. ... View more