Release Notes for the Cisco ME 3800X, ME 3600X and ME 3600X-24CX Switches, Cisco IOS Release 15.4(2)S

Table 1 Supported Hardware

Device	Description
Cisco ME-3800X-24FS-M	24 Gigabit Ethernet SFP downlink ports and 2 SFP+ (10 Gigabit) uplink ports; supports removable, hot-swappable AC- and DC-input power supplies and fan modules.
Cisco ME-3600X-24FS-M	24 Gigabit Ethernet SFP downlink ports and 2 SFP+ (10 Gigabit) uplink ports; supports removable, hot-swappable AC- and DC-input power supplies. and fan modules
Cisco ME-3600X-24TS-M	24 10/100/1000BASE-T copper downlink ports and 2 SFP+ (10 Gigabit) uplink ports; supports removable, hot-swappable AC- and DC-input power supplies and fan modules.
Cisco ME-3600X-24CX-M	IO mode 1 16 Gigabit Ethernet SFP downlink ports, 8 SFP/copper downlink ports and 2 XFP (10 Gigabit) uplink ports;16 T1/E1 interfaces; supports removable, hot-swappable AC and DC input power supply and fan modules. IO mode 2 8 SFP/copper downlink ports and 4 XFP (10 Gigabit) uplink ports;16 T1/E1 interfaces; supports removable, hot-swappable AC and DC input power supply and fan modules. IO mode 3 16 GigabitEthernet SFP downlink ports and 3 XFP (10 Gigabit) uplink ports; 16 T1/E1 interfaces; supports removable, hot-swappable AC and DC input power supply and fan modules.
SFP+ modules	SFP-10G-SR, SFP-10G-LR, SFP-10G-ER, SFP-10G-ZR, SFP-10G-LRM, SFP-H10GB-CUxM, DWDM-SFP10G-61.41, DWDM-SFP10G-60.61, DWDM-SFP10G-59.79, DWDM-SFP10G-58.98, DWDM-SFP10G-58.17, DWDM-SFP10G-57.36, DWDM-SFP10G-56.55, DWDM-SFP10G-55.75, DWDM-SFP10G-54.94, DWDM-SFP10G-54.13, DWDM-SFP10G-53.33, DWDM-SFP10G-52.52, DWDM-SFP10G-51.72, DWDM-SFP10G-50.92, DWDM-SFP10G-50.12, DWDM-SFP10G-49.32, DWDM-SFP10G-48.51, DWDM-SFP10G-47.72, DWDM-SFP10G-46.92, DWDM-SFP10G-46.12, DWDM-SFP10G-45.32, DWDM-SFP10G-44.53, DWDM-SFP10G-43.73, DWDM-SFP10G-42.94, DWDM-SFP10G-42.14, DWDM-SFP10G-41.35, DWDM-SFP10G-40.56, DWDM-SFP10G-39.77, DWDM-SFP10G-38.98, DWDM-SFP10G-38.19, DWDM-SFP10G-37.40, DWDM-SFP10G-36.61, DWDM-SFP10G-35.82, DWDM-SFP10G-35.04, DWDM-SFP10G-34.25, DWDM-SFP10G-33.47, DWDM-SFP10G-32.68, DWDM-SFP10G-31.90, DWDM-SFP10G-31.12, DWDM-SFP10G-30.33
SFP modules	GLC-FE-100FX, GLC-FE-100EX, GLC-FE-100ZX, GLC-FE-100LX, GLC-FE-100BX-U, GLC-FE-100BX-D, GLC-LH-SM, GLC-SX-MM, GLC-SX-MMD, GLC-LH-SMD, GLC-ZX-SM, GLC-EX-SMD, GLC-T, GLC-BX-U (CPN 10-2094-02), GLC-BX-D (CPN 10-2093-02), GLC-BX-U, GLC-BX-D, SFP-GE-L, SFP-GE-S, SFP-GE-T, CAB-SFP-50CM, CWDM-SFP-1470, CWDM-SFP-1490, CWDM-SFP-1510, CWDM-SFP-1530, CWDM-SFP-1550, CWDM-SFP-1570, CWDM-SFP-1590, CWDM-SFP-1610, DWDM-SFP-6061, DWDM-SFP-5979, DWDM-SFP-5898, DWDM-SFP-5817, DWDM-SFP-5736, DWDM-SFP-5655, DWDM-SFP-5575, DWDM-SFP-5413, DWDM-SFP-5494, DWDM-SFP-5332, DWDM-SFP-5252, DWDM-SFP-5172, DWDM-SFP-5092, DWDM-SFP-5012, DWDM-SFP-4931, DWDM-SFP-4851, DWDM-SFP-4772, DWDM-SFP-4692, DWDM-SFP-4612, DWDM-SFP-4532, DWDM-SFP-4453, DWDM-SFP-4373, DWDM-SFP-4294, DWDM-SFP-4214, DWDM-SFP-4134, DWDM-SFP-4056, DWDM-SFP-3977, DWDM-SFP-3898, DWDM-SFP-3819, DWDM-SFP-3739, DWDM-SFP-3661, DWDM-SFP-3582, DWDM-SFP-3504, DWDM-SFP-3425, DWDM-SFP-3346, DWDM-SFP-3268, DWDM-SFP-3190, DWDM-SFP-3112, DWDM-SFP-3033, DWDM-SFP-6141
SFP modules supported on the Cisco ME-3600X-24CX	SFP-GE-L, SFP-GE-S, SFP-GE-Z, GLC-LH-SM, GLC-SX-MM, GLC-SX-MMD, GLC-LH-SMD, GLC-T, SFP-GE-T, GLC-FE-100FX-RGD, GLC-FE-100LX-RGD, GLC-LX-SM-RGD, GLC-SX-MM-RGD, GLC-ZX-SM, GLC-ZX-SM-RGD, GLC-BX-U (CPN 10-2094-02), GLC-BX-D (CPN 10-2093-02), and GLC-EX-SMD, GLC-FE-100FX, GLC-FE-100EX, GLC-FE-100ZX, GLC-FE-100LX, GLC-FE-100BX-U, GLC-FE-100BX-D, CWDM-SFP-1470, CWDM-SFP-1490, CWDM-SFP-1510, CWDM-SFP-1530, CWDM-SFP-1550, CWDM-SFP-1570, CWDM-SFP-1590, CWDM-SFP-1610, DWDM-SFP-6061, DWDM-SFP-5979, DWDM-SFP-5898, DWDM-SFP-5817, DWDM-SFP-5736, DWDM-SFP-5655, DWDM-SFP-5575, DWDM-SFP-5413, DWDM-SFP-5494, DWDM-SFP-5332, DWDM-SFP-5252, DWDM-SFP-5172, DWDM-SFP-5092, DWDM-SFP-5012, DWDM-SFP-4931, DWDM-SFP-4851, DWDM-SFP-4772, DWDM-SFP-4692, DWDM-SFP-4612, DWDM-SFP-4532, DWDM-SFP-4453, DWDM-SFP-4373, DWDM-SFP-4294, DWDM-SFP-4214, DWDM-SFP-4134, DWDM-SFP-4056, DWDM-SFP-3977, DWDM-SFP-3898, DWDM-SFP-3819, DWDM-SFP-3739, DWDM-SFP-3661, DWDM-SFP-3582, DWDM-SFP-3504, DWDM-SFP-3425, DWDM-SFP-3346, DWDM-SFP-3268, DWDM-SFP-3190, DWDM-SFP-3112, DWDM-SFP-3033, DWDM-SFP-6141
XFP modules supported on the Cisco ME-3600X-24CX	XFP-10G-MM-SR, XFP10GLR192SR-RGD, XFP10GER192IR-RGD, XFP-10GER-192IR+, XFP-10GER-192LR, XFP-10GER-192LR+, XFP10GZR192LR-RGD, XFP10GLR-192SR-L, XFP10GER-192IR-L, XFP-10GZR-OC192LR, DWDM-XFP-C
Cables	SFP interconnect cable (50 cm) 1-meter, 3-meter, and 5-meter copper SFP+ cables

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Table 2 ME 3600X Supported Features per License

Metro IP Access (Universal Image)

Advanced Metro IP Access license

Basic Layer 2 features (including 802.1Q) Ethernet Virtual Circuits (EVCs) IPv4 routing—RIP, OSFP, EIGRP, IS-IS, and BGP Bidirectional Forwarding Detection (BFD) Multicast routing —PIM, DM, SSM, and SSM mapping Ethernet Operations, Administration, and Maintenance (OAM)—802.1ag, 802.3ah, and E-LMI Multiple Spanning Tree Protocol (MSTP), Resilient Ethernet Protocol (REP), and Flex Links Synchronous Ethernet with Ethernet Synchronization Messaging Channel (ESMC) Multi VRF-CE (VRF-Lite) with service awareness (ARP, ping, SNMP, syslog, traceroute, FTP and TFTP) Switch Database Management (SDM) templates Quality of Service (QoS) 802.1ad

All features in the Metro IP Access image Multiprotocol label switching (MPLS) MPLS traffic engineering and Fast Reroute MPLS OAM MPLS VPN Ethernet over MPLS (EoMPLS) Pseudowire redundancy Virtual Private Lan Service (VPLS)

Table 3 ME 3600X and ME 3600X-24CX License Scaling and Template

Supported feature	Metro IP Access		Advanced Metro IP Access
SDM Templates	Default	IPv4	Default	IPv4	Application template 1
MAC addresses	8 K	8k	16 K	16 K	16 K
IPv4 routes	20 K	24K	20 K	24 K	12 K
IPv6 routes	5 K	4 K	6 K	3 K	4 K
Layer 2 Multicast groups	1 K	1 K	1 K	1 K	1 K
Layer 3 Multicast groups	1 K	1 K	1 K	1 K	1 K
Bridge domains	4 K	4 K	4 K	4 K	4 K
Maximum Pseudowire (EoMPLS or VPLS)	—	—	512	512	512
MPLS VPN	—	—	128	128	128
VRF Lite	128	128	128	128	128
VPLS Instances	0	—	26	26	26
ACL entries	2 K	2 K	2 K	2 K	IPv4: 2 K IPv6: 1 K
Queues	4 K	4 K	4 K	4 K	4 K
Queues per ASIC	2 K	2 K	2 K	2 K	2 K
IPv4 QoS classification	4 K	4 K	4 K	4 K	1 K
Policers	2 K	2 K	2 K	2 K	2 K
EFP	3990	3990	3990	3990	3990
EFPs per Port	3990	3990	3990	3990	3990
STP Instances	128	128	128	128	128
Etherchannel Groups	26	26	26	26	26
Interfaces per Etherchannel Groups	8	8	8	8	8
HSRP/VRRP	128	128	128	128	128
FRR/TE Headend	—	—	512	512	512
FRR/TE Midpoints	—	—	5 K	5 K	5 K
BFD Sessions @ 50 msec	50	50	50	50	50
Number of SVI for Layer 3	128	128	128	128	128
PBR Entries	—	—	—	—	250
BGP Session	100	100	100	100	100
mVPN-MDT	—	—	—	—	250

Table 4 ME 3800X Supported Features per License

Metro Ethernet Services (Universal Image)	Metro IP Services license	Metro Aggregation Services license
Basic Layer 2 features (including 802.1d and 802.1Q) EVCs Ethernet OAM—802.1ag, 802.3ah, and E-LMI MST, REP, Flex Links Synchronous Ethernet with Ethernet Synchronization Messaging Channel (ESMC)	All features in the Metro Ethernet Services image IPv4 routing—RIP, OSFP, EIGRP, IS-IS, and BGP BFD Multicast routing—PIM, DM, SSM, and SSM mapping Multi VRF-CE with service awareness (ARP, ping, SNMP, syslog, traceroute, FTP and TFTP)	All features in the Metro IP Services license MPLS MPLS traffic engineering and Fast Reroute MPLS OAM MPLS VPN EoMPLS Pseudowire redundancy Virtual Private Network (VPLS)

Table 5 ME 3800X License Scaling

Supported Feature	Metro Services	Scaled Metro Services	Metro IP Services	Scaled Metro IP Services	Metro Aggregation Services	Scaled Metro Aggregation Services
	Default	Default	Default	Default	Default	Default	VPNv4	VPNv4+ IPV6	Video Template
MAC table addresses	64 K	128 K	32 K	64 K	128 K	256 K	256 K	256 K	256 K
IPv4 routes	1 K	1 K	42 K	80 K	24 K	32 K	80 K	80 K	80 K
Layer 3 Multicast Groups	0	0	2 K	4 K	2 K	4 K	8 K	2 K	10 K
IPv6 routes	0.5 K	0.5 K	21 K	40 K	12 K	16 K	8 K	40 K	8 K
Layer 2 Multicast Groups	2 K	4 K	2 K	2 K	2 K	4 K	4 K	2 K	10 K
Bridge domains	4 K	4 K	2 K	2 K	4 K	8 K	4 K	8 K	4 K
ACL entries	4 K	8 K	4 K	8 K	4 K	16 K	4 K	4 K	4 K
IPv4 QoS classification	16 K	24 K	16 K	24 K	16 K	24 K	12 K	12 K	12 K
EoMPLS PW (Cisco IOS Release 15.1(2)EY and later	0	0	0	0	4 K	8 K	8 K	8 K	1 K
MPLS VPN	0	0	0	0	2 K	2 K	2 K	2 K	2 K
VRF Lite	0	0	2 K	2 K	2 K	2 K	2 K	2 K	2 K
VPLS Instances	0	0	0	0	1 K	4 K	4 K	4 K	4 K
Queues	16 K	32 K	16 K	32 K	16 K	32 K	32 K	32 K	32 K
Queues per ASIC	8 K	16 K	8 K	16 K	8 K	16 K	16 K	16 K	16 K
Policers	8 K	16 K	8 K	16 K	8 K	16 K	16 K	16 K	16 K
EFP	3990	15990	3990	3990	3990	15990	3990	3990	3990
Maximum EFPs per Port	3990	3990	3990	3990	3990	3990	3990	3990	3990
STP Instances	128	128	128	128	128	128	128	128	128
Maximum Etherchannel Groups	26	26	26	26	26	26	26	26	26
Interfaces per Etherchannel Group	8	8	8	8	8	8	8	8	8
HSRP/VRRP	256	256	256	256	256	256	256	256	256
FRR/TE Headend	—	—	—	—	1 K	1 K	1 K	1 K	1 K
FRR/TE Midpoints	—	—	—	—	7 K	7 K	7 K	7 K	7 K
Number of SVI for Layer 3	1 K	4 K	1 K	4 K	1 K	4 K	4 K	4 K	4 K
PBR Entries	—	2 K	—	2 K	—	2 K	2 K	2 K	2 K
BGP Session	100	100	100	100	100	100	100	100	100
mVPN-MDT	—	1 K	—	1 K	1 K	1 K	1 K	1 K	1 K

Finding the Software Version and Feature Set

The Cisco IOS image is stored as a bin file in a directory that is named with the Cisco IOS release. The image is stored on the system board flash device (flash:).

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Note The flash memory can store a maximum of two IOS images or tar files. If you try to copy or archive upgrade beyond the flash memory capacity, the action aborts.

You can use the show version privileged EXEC command to see the software version that is running on your switch. The second line of the display shows the version.

You can also use the dir filesystem : privileged EXEC command to see the directory names of other software images that you might have stored in flash memory.

Deciding Which Files to Use

The software installation procedures in these release notes describe how to perform the upgrade by using a combined tar file. This file contains the Cisco IOS image file. To upgrade the switch through the command-line interface (CLI), use the tar file and the archive download-sw privileged EXEC command.

 

Installing Software Images and Licenses

The Cisco ME 3800X, ME 3600X and ME 3600X-24CX switches are shipped with the latest software image installed. Follow the instructions in this section if you need to reinstall or upgrade the software image.

Before installing your switch software, make sure that you have archived copies of the current Cisco IOS release and the Cisco IOS release to which you are upgrading. You should keep these archived images until you have upgraded all devices in the network to the new Cisco IOS image and until you have verified that the new Cisco IOS image works properly in your network.

Cisco routinely removes old Cisco IOS versions from Cisco.com. See End of Sale and End of Life Products at this URL:

http://www.cisco.com/en/US/products/sw/iosswrel/prod_category_end_of_life.html

You can copy the software image file on the flash memory to the appropriate TFTP directory on a host by using the copy flash: tftp: privileged EXEC command. You can also configure the switch as a TFTP server to copy files from one switch to another without using an external TFTP server by using the tftp-server global configuration command. For more information about the tftp-server command, see the “Basic File Transfer Services Commands” section of the Cisco IOS Configuration Fundamentals Command Reference at this URL:

ht tp://www.cisco.com/en/US/docs/ios/fundamentals/command/reference/cf_book.html

This procedure is for copying the combined tar file to the switch. You copy the file to the switch from a TFTP server and extract the files. You can download an image file and replace or keep the current image.

To download software, follow these steps:

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Step 1 Use Table 6 to identify the file that you want to download.

Step 2 Locate the software image file:

a. If you are a registered customer, go to this URL and log in.

http://software.cisco.com/download/navigator.html

b. For ME 3800X, navigate to Switches > Service Provider Switches - Ethernet Aggregation.

For ME 3600X, navigate to Switches > Service Provider Switches - Ethernet Access.

c. Navigate to your switch model.

d. Click IOS Software, then select the latest IOS release.

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Note When you select a crypto graphic image, you must also accept the terms and conditions of using crypto graphic images.

Step 3 Download the image to a TFTP server and make sure that the server is properly configured.

For more information, refer to Appendix B in the software configuration guide for this release.

Step 4 Log into the switch through the console port or a Telnet session.

Step 5 (Optional) Ensure that you have IP connectivity to the TFTP server by entering this privileged EXEC command:

For more information about assigning an IP address and default gateway to the switch, refer to the software configuration guide for this release.

Step 6 Download the image file from the TFTP server to the switch by entering this privileged EXEC command:

• For // location, specify the IP address of the TFTP server.
• For / directory / image-name .tar, specify the directory (optional) and the image to download. Directory and image names are case sensitive.
• The /overwrite option overwrites the software image in flash memory with the downloaded one.
• The /reload option reloads the system after downloading the image unless the configuration has been changed and not saved.

This example shows how to download an image from a TFTP server at 192.0.2.1 and to overwrite the image on the switch:

You can also download the image file from the TFTP server to the switch and keep the current image by using the /leave-old-sw option instead of the /overwrite option.

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Note There can be only two image directories in the flash memory.

The installation process extracts the tar file with all the files and the IOS image, and sets the BOOT directory to the created directory in flash memory. The process takes approximately 5 to 10 minutes, and at some stages might appear to have stopped.

Step 7 The switch is configured to boot automatically, but you can enter the show boot privileged EXEC command to verify the boot path list and see if a manual boot is necessary.

 

Step 8 Save the configuration and reload the switch.

 

After the installation, the switch is running the universal image. Follow these steps to install a purchased license with increased capabilities. To purchase a license, contact Cisco.

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Step 1 Copy the license file to flash or TFTP.

Step 2 Enter this command to install the license:

Step 3 Enter these commands to boot from the new license:

Step 4 If you have a a scaled license, install the scaled license

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Note To revert to a non-scaled license, enter the license clear scaled_license_name privileged EXEC command.

Step 5 Reload the switch for new license to take effect.

Cisco IOS Release15.4(2)S

The following new software features are introduced in the Cisco IOS Release 15.4(2)S:

• 802.1ad

IEEE 802.1ad Provider Bridge implements standard protocol for double tagging of data and control protocol tunneling.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/configuration/guide/3800x3600xscg/sw802_one_ad.html

• Auto-IP SVI/Port-Channel

In the ring topology, when a device is inserted into the ring, the neighboring node interfaces require manual reconfiguration. The Auto-IP feature addresses the problem of manually reconfiguring nodes during insertion, deletion, and movement of nodes within the ring. This feature automatically provides IP addresses to the nodes inserted into the ring. Starting with Cisco IOS Release 15.4(2)S, Auto-IP is supported on SVI, Port-Channel, and VRF.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/configuration/guide/3800x3600xscg/auto_ip.html

• BFD Echo Mode

Starting with Cisco IOS Release 15.4(2)S, the Cisco ME3600X-24CX-M Switch supports Bidirectional Forwarding Detection (BFD) in IPv4 Asynchronous and Echo mode. The Cisco ME-3600-24CX Series switch supports 511 BFD sessions. BFD Echo Mode is offloaded to hardware, which is only applicable to the ME-3600-24CX Series model.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_1_S/chassis/configuration/guide/3600x_24cxscg/swbfd.html

• BGP Accumulated IGP

The Border Gateway Protocol (BGP) Accumulated IGP feature is an optional non-transitive BGP path attribute. The attribute type code for the accumulated interior gateway protocol (AIGP) attribute is assigned by the Internet Assigned Numbers Authority (IANA). The value field of the AIGP attribute is defined as a set of type, length, value (TLV) elements. The AIGP TLV contains the AIGP metric.

For more information, see http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3s/irg-xe-3s-book/bgp-accumulated-igp.html

• BGP PIC Edge for IP and MPLS

The Border Gateway Protocol Prefix-Independent Convergence (BGP PIC) Edge feature improves BGP convergence after a network failure. This convergence is applicable to both core and edge failures, and you can use it in both IP and MPLS networks. This feature creates and stores a backup or an alternate path in the routing information base (RIB), forwarding information base (FIB), and Cisco Express Forwarding (CEF). When a failure is detected, the backup is taken or an alternate path is chosen immediately, thus enabling a fast failover.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/configuration/guide/3800x3600xscg/swiprout.html

• Hybrid Clocking Support

Starting with Cisco IOS Release 15.4(2)S, the hybrid mode is supported with PTP 1588 redundancy. The hybrid mode is supported on the boundary clock and on the slave ordinary clocks.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/chassis/configuration/guide/3600x_24cxscg/swclocking.html

• ISIS Local Microloop Protection

The ISIS Local Microloop Protection feature enables the link-state routing protocols such as the Intermediate System-to-Intermediate System (ISIS) protocol to prevent or avoid local microloops or uloops during a network convergence after a link-down event.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/configuration/guide/3800x3600xscg/swiprout.html

• Time stamping using Network Time Protocol

Accurate synchronization of the two end-point clocks is achieved through either PTP/IEEE 1588-2002 or Network Time Protocol (NTP). This function is supported across all the Cisco ME3600X and ME3800X series of switches.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/configuration/guide/3800x3600xscg/swy1731pm.html

• Secured Zero Touch bootstrapping using AN

Autonomic Networking (AN) makes network devices intelligent by introducing self-management concepts that simplify network management for the network operator. The Autonomic Networking Infrastructure feature simplifies the network bootstrap functionality by removing the need for any kind of pre-staging. This helps the network devices to join a domain securely, after which you can configure the devices.

For more information, see http://www.cisco.com/c/en/us/td/docs/switches/metro/me3600x_3800x/software/release/15-4_2_S/configuration/guide/3800x3600xscg/autonomic_net.html

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Open Caveats in Cisco Release 15.4(2)S4

There are no open caveats in this release.

Resolved Caveats in Cisco Release 15.4(2)S4

There are no open caveats in this release.

Open Caveats in Cisco Release 15.4(2)S3

There are no open caveats in this release.

Resolved Caveats in Cisco Release 15.4(2)S3

 

Open Caveats in Cisco Release 15.4(2)S2

• CSCtx81010

ICMP destination ‘un-reachable’ messages are not generated by switch.

• CSCui64565

EFP needs to be reconfigured when VPLS is replaced with EoMPLS.

• CSCum55294

The vlanTrunkPortDynamicState OID is not available when the interface comes up.

• CSCum69908

The Y.1731 performance monitoring does not collect stats on EVC Tag X to Y transition on MPLS pseudowire.

• CSCun38323

Multicast traffic does not pass when bridge domain value is 8000.

• CSCuo34646

Transceiver "no monitoring" is not maintained across reload of the switch.

• CSCuo40698

CE-to-CE ping fails when VC Out-Interface is TE Tunnel and access is port channel.

• CSCuo65201

Non-Cisco SFP+ (SFP-10G-ZR) not supported on the Cisco ME3800 switch.

• CSCup12317

Flex Link backup is administratively down when VLB configuration is removed.

• CSCup57179

OID displays the system temperature instead of power supply temperature value.

• CSCup90159

REP does not converge and MALLOC traceback is observed.

• CSCup98778

MAC flaps happen in VPLS setup when standby AC power supply is configured.

• CSCuq40030

A crash is seen in nl3mmpd_del_mroute. The variables that are passed from nl3mmpd_handle_events point to a block of memory that is a freed chunk.

• CSCuq97183

A port configured for EoMPLS goes into half-dulex even though it is configured as full duplex, after xconnect flaps.

• CSCur02626

The show ethernet service instance int stats command displays incorrect values.

Resolved Caveats in Cisco Release 15.4(2)S2

• CSCul65205

MAC security on EVC causes high CPU utilization.

• CSCun75614

EVC configured in a bridge-group do not display local MAC addresses.

• CSCuo31527

OSPF packets are not forwarded.

• CSCuo85614

REP interface may flap frequently and randomly on the Cisco ME-3600-CX.

• CSCuo91791

Removing of service policy on interface with traffic cause device to freeze. CPUHOG messages are seen in the logs which may be followed by a crash due to watchdog timeout.

• CSCup17593

The VLAN interface state is administratively up even when the physical port state is down.

• CSCup23126

IPv6 and IPv4 VRF pings fail due to incorrect VRF label programmed in the hardware.

• CSCup42207

WANPHY flag j1 transmit command availability displays inconsistent behavior with running-config and start config commands.

• CSCup62987

cbQosQueueingCfgBandwidth returns value of zero.

• CSCuq29134

The system adds the VLAN configuration automatically for each VLAN created on the device.

• CSCuq61773

When a class is configured with bandwidth, it shows the bandwidth percent values from cbQosQueueingCfgBandwidth.

Open Caveats in Cisco Release 15.4(2)S1

• CSCuj99721

Symptom: Routed Pseudowire (RPW) ping fails from PE to CE, when SplitHorizon Group 2 is configured in access, and if RPW is with Virtual Private LAN Service (VPLS) Virtual Circuit (VC).

Conditions: This issue occurs when the ping fails.

Workaround: Configure SH Group 1.

• CSCum55294

Symptom: The vlanTrunkPortDynamicState OID is not available when the interface goes up. The switch displays the error “No Such Instance currently exists at this OID”.

Conditions: This issue occurs under normal conditions. It was first discovered in the Cisco IOS 15.3(3)S release.

Workaround: There is no workaround.

• CSCum81836

Symptom: ICMP destination unreachable message is not generated by the device.

Conditions: This issue occurs when a packet is dropped because there is no route in the routing table

Workaround: There is no workaround.

• CSCuo34646

Symptom: When the interface transceiver monitoring is disabled, the interface transceiver reappears after a reload.

Conditions: This issue occurs when the interface transceiver monitoring is disabled with the following commands:

After a reload, the commands reappear in the configuration.

Workaround: An EEM script can be applied to remove the commands from the configuration at bootup. This EEM script looks for the syslog message indicating the device was reloaded

• CSCuo40698

Symptom: CE-to-CE ping fails when the TE Tunnel is "Up” on core.

Conditions: This issue occurs when the ARP is not resolved.

Workaround: Perform a shut of the tunnel interface.

• CSCup12317

Symptom: When the flexlink VLAN Load Balancing (VLB) configuration switchport backup interface interface-id prefer vlan vlan-id is removed on the Cisco ME3600X switch, the backup port is administratively down.

Also in this condition, even when active port is administratively down, backup port does not come up.

Conditions: This issue occurs under normal conditions.

Workaround: Run the following commands

shut backup port

no shut backup port

Or reconfigure the backup port

• CSCup12317

Symptom: VLAN interface state and protocol is UP even when the corresponding physical interface is DOWN.

Conditions: This issue occurs under normal conditions.

Workaround: Shut/no shut the physical interface.

• CSCup23126

Symptom: IPv6 neighbor discovery (ND) fails due to an incorrect VRF label.

Conditions: This issue occurs when SVI VRF is configured on a specific sequence.

The IPv4 and IPv6 VRF pings fail due to an incorrect VRF label programmed in the hardware.

Workaround: unconfig/config the VRF definition or reload the switch.

Resolved Caveats in Cisco Release 15.4(2)S1

• CSCun35070

Symptom: Targeted LDP session between Customer Edge devices flap every 3 minutes. IGP Interface LDP between CE devices run fine.

Conditions: This issue occurs when MPLS LDP packet is carried over L2VPN cloud with Control word OFF.

Workaround: Configure control word ON in L2VPN cloud.

• CSCum41874

Symptom: The license boot level tag ‘license boot level’ appears in show run command, and this

tag is not removable.

Conditions: This issue occurs under normal conditions.

Workaround: There is no workaround.

• CSCum91147

Symptom: A few transceiver related alarms are not reported in the CLI after running the

show facility-alarm status command. SNMP traps are not generated either for the same events.

Conditions: This issue occurs when the Cisco ME 3800X switch is running IOS release 15.3(3)S1.

Workaround: There is no workaround.

• CSCun20476

Symptom: The ECMP max-path can configure 1 to 16 when using MetroIPAccess.

Conditions: This issue occurs when you boot with MetroIPAccess.

Workaround: Use values 1 to 4.

• CSCun47357

Symptom: Enabling PBR breaks the EIGRP multicast.

Conditions: This issue occurs when:

1. A Route map is created for any random IP address (not necessarily related to multicast/protocol IP).

2. The PBR is enabled on an interface with EIGRP peering.

Workaround: There is no workaround.

• CSCun58030

Symptom: The Cisco ME3600-24CX does not display time source information when running PTP.

Conditions: This issue occurs when the ME3600-24CX does not display time source information when running PTP protocol. There is no functional issues noticed with PTP time synchronization. The time source field says Unknown.

Workaround: There is no workaround.

• CSCun81754

Symptom: The snmpEngineBoots integer does not increment on the Cisco ME 3600X and ME3800X after the device is reloaded. Instead, it is reinitialized.

Conditions: This issue occurs only when the device is rebooted.

Workaround: Perform a warm restart of the device to increment the snmpEngineBoots integer.

• CSCun91720

Symptom: The v6 multicast traffic is punted to host queue.

Conditions: This issue occurs on a L2 box with no multicast configuration.

Workaround: There is no workaround.

• CSCuo40523

Symptom:

– Peer IP does not ping over layer 3 Port Channel

– Layer 3 (or upper) protocols fail to converge

Conditions: This issue occurs over layer 3 Port Channel

Workaround: Configure Static ARP.

• CSCuo54427

Symptom: The runts and input errors are reported on the interface.

Conditions: This issue occurs on 100FX optics without fiber connected.

Workaround: Connect the fiber.

• CSCuo82355

Symptom: BFD session fails to be administratively up.

Conditions: This issue occurs when BFD is running on Cisco IOS Release 15.4(1)S or earlier.

Workaround: Upgrade to Cisco IOS Release 15.4(2)S or later.

• CSCup54959

Symptom: Interface description is not retained in the running-config after loading the Cisco IOS Release 15.4(2)S.

Conditions: This issue occurs undernormal conditions.

Workaround: Copy the start-up configuration to the running config immediately after bootup.

Open Caveats in Cisco Release 15.4(2)S

• CSCum04406

Symptom: BFD Sessions flaps with Layer 3 SLA.

The Bidirectional Forwarding Detection (BFD) sessions flap with the Layer 3 Service Level Agreements (L3 SLA).

Conditions: The issue occurs while staring the SLA, which is configured with profile data of the Internet Mix (IMIX) traffic pattern.

Workaround: Use the packet profile combination of 64, 128, and 512 byte packets.

• CSCun02392

Symptom: The tagged traffic drops.

Conditions: The issue occurs under the following conditions:

– Tagged traffic

– EFP is configured with dot1q/dot1ad VLAN range.

Workaround: Unconfigure and reconfigure the service instance.

• CSCun16508

Symptom: Configure an IP SLA Service Performance test by using IMIX packet size and without setting CIR or EIR. Observe that the amount of sent and received traffic is below the configured rate. This shows up in a two-way test under the IR and Rx/Tx statistics and in a Traffic Generator test in the Tx statistics.

Conditions: The issue occurs when you configure an IP SLA Service Performance Test which involves traffic generation (Traffic Generator and Two-Way modes) using packet size of IMIX and without having set CIR or EIR. This includes all non-color-aware test cases.

Workaround: Set the cir value equal to the highest configured rate step. Each traffic step meets the configured rate for the current step.

• CSCun62419

Symptom: The egress traffic on network-to-network interface (NNI) software trunk interface does not contain the expected outer 0x88a8 tag when the ingress interface is configured as S-UNI port with Ethernet Virtual Circuit (EVC).

Conditions: The issue occurs under the following conditions:

– When the ingress C-VLAN value is differed with the configured BD value of UNI-S EVC port.

– When S-UNI port is configured with “encapsulation default” and the S-UNI BD value and NNI trunk VLAN are the same.

– If the S-UNI encap default, BD=100 and NNI trunk VLAN member of 100

Workaround: Perform shut and no shut on the S-UNI interface, the traffic egress on NNI with expected VLAN ID on the dot1ad tag.

• CSCun54426

Symptom: The LACP protocol flaps between ME3600 switches on EVC service instance configurations.

Conditions: The issue occurs when a valid bridge-domain is not configured along with the service instance configurations.

Workaround: Add a bridge-domain to the service instance configuration

• CSCum69908

Symptom: The Y1731 Performance Monitoring (PM) does not collect the statistics when the EVC tag X popped on ingress traffic before transiting MPLS PW and pushed EVC tag Y at egress traffic.

Conditions: The issue occurs when you send the CFM untagged packets over a pseuduowire.

Workaround: IP SLA works fine when the cos value matches with the cfm domain level.

Resolved Caveats in Cisco Release 15.4(2)S

• CSCui64246

Symptom: After removing an xconnect from an EFP, the EFP continues to point to the same vsiid. This results in traffic flow instead traffic drop.

Conditions: The issue occurs when an xconnect configuration is removed from an EFP without removing the service instance.

Workaround: Remove the entire service instance configuration.

• CSCui77188

Symptom: Unable to access SD flash (2G 16-3932-01 (C-Temp)) plugged in to a Cisco IOS ME 3600X 24CX series router. The message "SD read failed!" is displayed when the device boots up.

Conditions: This issue occurs when a Cisco IOS ME 3600X 24CX series router is booted with SD card (2G 16-3932-01 (C-Temp)) plugged in.

Workaround: Use 2GB 16-3795-01 (I-Temp) SD cards.

• CSCui84876

Symptom: Serial interface flaps and counters of serial interface fail to increment.

Conditions: The issue occurs under the following conditions:

– When you configure a T3 SAToP on path 1 of the first oc3 port (1/0/0)

– When you configure a serial interface between W2_PE1 and W2_PE2 on OC3 port connected b2b (1/0/1)

– When the input and output of the serial interface counters fail to increment for any serial interface created and first serial interface flaps of each port.

– When the counters fail to increment after you delete and recreate the first serial interface.

– When you reload the box after you recreate the first serial interface, the first serial interface again goes down.

Workaround: Delete and recreate the serial interface.

• CSCui92804

Symptom: Multicast traffic is software forwarded.

Conditions: The issue occurs when the multicast traffic flows on CPU with RPF interface as L3 port-channel.

Workaround: Move RPF to physical interface.

• CSCuj73969

Symptom: SVI EoMPLS traffic loss after moving from default template to vpnv4-v6 template.

Conditions: The issue occurs when traffic fails at disposition.

Workaround: Change the template to default template.

• CSCul01805

Symptom:

When a Metro switch ME600 or ME3800 is reloaded with an Ethernet service instance in administratively shutdown state, it might report MAC-flap messages between the administratively down service instance and another port if there is a loop with the service instance active.

This is only mac-flap messages since the efp learns the mac-address, but traffic is not forwarded.

Conditions:

The issues occurs when the mac-flap messages on the shut efp is seen only at bootup. This is seen only if there is already a loop when the service instance is made active.

Workaround: Perform shut and no shut of the service instance.

• CSCul19148

Symptom:

The.bin file that is extracted from tar does not have the right image name. And, when you upgrade the image from 3.10.0 to 3.10.1 by using the archive download-sw <TAR file> command, the router drops to rommon.

Conditions: The issue occurs when you extract the.bin file from.tar file and/or when you extract the.bin file by using the archive download-sw command.

Workaround:

There is no work around for the wrong image name. Router dropping to rommon during upgrade through the archive download-sw command can be avoided by using archive download-sw /leave-old-sw <TAR file> command.

• CSCul63141

Symptom: Layer 2 flow hits Layer 3 ACL entry.

Conditions: The issue occurs when the SVI interface is configured with "no ip unreachables".

Workaround:

1. Create a specific permit entry for the direction of ping (ICMP traffic) in the ACL.

2. Remove "no ip unreachables" configuration from the SVI.

• CSCum04999

Symptom: Egress classification does not work on switchport trunk interface with and without configuring allowed VLANs.

Conditions: The issue occurs when egress QoS is applied on an interface where switchport trunk interface is configured.

Workaround: There is no workaround.

• CSCum14431

Symptom: MVPN traffic is not received by the receivers when the core replication stops working properly.

Conditions: The issue occurs when a lot of scale is present or when data MDT is used with scale for mVPN.

Workaround: Use the default MDT.

• CSCum64231

Symptom: STP BPDU loss is observed when you want to tunnel or forward BPDUs across a EVC xconnect.

Conditions:

The issue occurs when you want to tunnel or forward BPDUs across a EVC xconnect. This issue is specific to l2pt forward or tunnel and is not seen with other forms of Xconnect.

Workaround: There is no workaround.

• CSCum70579

Symptom: ME3600X: CISCO-EVC-MIB is not available with MetroIPAccess license.

Conditions: The issue is observed only with MetroIPAccess license.

Workaround: Upgrade the license to AdvancedMetroIP license.

• CSCum90797

Symptom: Ping loss is seen for significant duration from non-directly connected VRRP device when the MAC address of the end host changes.

Conditions: The issue occurs when the end host device is changed with another device with the same IP address but different MAC address. Due to this issue, the non-directly connected devices are not able to ping to the host.

Workaround: Perform shut and no shut of the SVI on the non-directly connected devices.

• CSCun01188

Symptom: When the switch has a large number of active global VLANs active this case 500 and input policy is attached after egress policy on trunk port, console hangs for 15 minutes.

Conditions:

The issue occurs due to the following conditions:

1. Large number of active global VLANs this case 500.

2. Output policy in trunk port.

3. Input policy is configured after output policy attachment.

Workaround: There is no workaround.

• CSCun12530

Symptom: Targeted LDP session between CE devices may not form when ME3600CX is acting as a PE device with "no mpls ip propogate-ttl forward" configured on CE and PE device.

Conditions: This issue occurs when ME3600CX acts as PE router with "no mpls ip propogate-ttl forward" configured.

Workaround: Remove "no mpls ip propogate-ttl forward" from ME3600CX router.

• CSCun25316

Symptom: ISIS flaps.

Conditions: The issue occurs when more than 1k packets are passed to routing protocol queue.

Workaround: Increase the queue size.

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This document is to be used in conjunction with the documents listed in the “Related Documentation” section.

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